Security: pin GitHub Actions to SHA hashes (#326)

* Security: pin GitHub Actions to SHA hashes

Replaces mutable tag/branch references with immutable SHA hashes
to prevent supply chain attacks (ref: TeamPCP/Trivy March 2026).

Actions left as tags: 0

* fix: Use correct GH token

---------

Co-authored-by: Codacy Security Bot <security-bot@codacy.com>
Co-authored-by: André Meira <6381457+afsmeira@users.noreply.github.com>

Author: 3 people

.github/workflows/enforce-labels.yml

@@ -8,7 +8,7 @@ jobs:
   enforce-label:
     runs-on: ubuntu-latest
     steps:
-    - uses: yogevbd/enforce-label-action@2.2.2
+    - uses: yogevbd/enforce-label-action@a3c219da6b8fa73f6ba62b68ff09c469b3a1c024 # 2.2.2
       with:
         BANNED_LABELS: "don't merge"
 

.github/workflows/jira.yml

@@ -10,15 +10,15 @@ jobs:
     steps:
       - name: Jira login
         id: login
-        uses: atlassian/gajira-login@v3.0.1
+        uses: atlassian/gajira-login@45fd029b9f1d6d8926c6f04175aa80c0e42c9026 # v3.0.1
         env:
           JIRA_BASE_URL: ${{ secrets.JIRA_BASE_URL }}
           JIRA_USER_EMAIL: ${{ secrets.JIRA_USER_EMAIL }}
           JIRA_API_TOKEN: ${{ secrets.JIRA_API_TOKEN }}
 
       - name: Create Jira issue
         id: create_jira_issue
-        uses: atlassian/gajira-create@v3.0.1
+        uses: atlassian/gajira-create@59e177c4f6451399df5b4911c2211104f171e669 # v3.0.1
         with:
           project: DOCS
           issuetype: Bug
@@ -33,7 +33,7 @@ jobs:
           fields: '{"customfield_10009": "DOCS-162", "labels": ["Pulse"]}'
 
       - name: Update title of GitHub issue
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7
         env:
           JIRA_ISSUE_NUMBER: ${{ steps.create_jira_issue.outputs.issue }}
           GITHUB_ORIGINAL_TITLE: ${{ github.event.issue.title }}
@@ -49,7 +49,7 @@ jobs:
             })
 
       - name: Add comment to GitHub issue
-        uses: actions/github-script@v7
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |

.github/workflows/mkdocs.yml

@@ -7,15 +7,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
         with:
-          token: ${{ secrets.DEPLOYMENT_PERSONAL_ACCESS_TOKEN }}
+          token: ${{ secrets.GITHUB_TOKEN }}
           submodules: true
           # git-revision-date-localized-plugin and mkdocs-rss-plugin need full git history depth
           fetch-depth: 0
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.x"
           cache: "pip"
@@ -29,7 +29,7 @@ jobs:
           mkdocs -v build
 
       - name: Upload meta descriptions artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: meta-descriptions
           path: ./site/meta-descriptions.csv
@@ -42,13 +42,13 @@ jobs:
       - name: Obtain Netlify alias from branch name
         id: branch
         if: github.ref != 'refs/heads/master'
-        uses: common-fate/branch-name@v1.1.2
+        uses: common-fate/branch-name@baca702844ae4e7dfd7bfdfa6a9bd4235bc9f08e # v1.1.2
         with:
           max-length: 35
 
       - name: Deploy docs (branch preview)
         if: github.ref != 'refs/heads/master'
-        uses: nwtgck/actions-netlify@v3.0
+        uses: nwtgck/actions-netlify@4cbaf4c08f1a7bfa537d6113472ef4424e4eb654 # v3.0
         with:
           publish-dir: ./site
           production-branch: master
@@ -79,7 +79,7 @@ jobs:
           echo -e "User-agent: *\nSitemap: https://${{ env.CUSTOM_DOMAIN }}/sitemap.xml" > "./site/robots.txt"
 
       - name: Deploy docs
-        uses: peaceiris/actions-gh-pages@v4
+        uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # v4
         if: github.ref == 'refs/heads/master'
         with:
           personal_token: ${{ secrets.DEPLOYMENT_PERSONAL_ACCESS_TOKEN }}

.github/workflows/scheduled.yml

@@ -9,11 +9,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Check for broken links
         id: lychee
-        uses: lycheeverse/lychee-action@v1.10.0
+        uses: lycheeverse/lychee-action@2b973e86fc7b1f6b36a93795fe2c9c6ae1118621 # v1.10.0
         with:
           args: --verbose ./docs/**/*.md
           jobSummary: true
@@ -22,7 +22,7 @@ jobs:
 
       - name: Create issue
         if: env.lychee_exit_code != 0
-        uses: peter-evans/create-issue-from-file@v5
+        uses: peter-evans/create-issue-from-file@e8ef132d6df98ed982188e460ebb3b5d4ef3a9cd # v5
         with:
           title: Broken link report
           content-filepath: ./lychee/out.md
@@ -32,18 +32,18 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Compress images
         id: calibre
-        uses: calibreapp/image-actions@main
+        uses: calibreapp/image-actions@03c976c29803442fc4040a9de5509669e7759b81 # main
         with:
           githubToken: ${{ secrets.GITHUB_TOKEN }}
           compressOnly: true
 
       - name: Create pull request
         if: steps.calibre.outputs.markdown != ''
-        uses: peter-evans/create-pull-request@v6
+        uses: peter-evans/create-pull-request@c5a7806660adbe173f04e3e038b0ccdcd758773c # v6
         with:
           title: "clean: Compress images"
           branch-suffix: timestamp

.github/workflows/vale.yml

@@ -8,13 +8,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           submodules: false
 
       - name: Vale
-        uses: errata-ai/vale-action@v2.1.0
+        uses: errata-ai/vale-action@38bf078c328061f59879b347ca344a718a736018 # v2.1.0
         with:
           filter_mode: added
           debug: true