chore(renovate): use releasable commit type for runtime deps

Configure Renovate to emit fix(deps) for npm runtime dependency updates so Release Please treats them as releasable by default.

Keep devDependencies as chore(deps) to avoid release noise from development-only updates.

Author: taeold

.github/renovate.json

@@ -3,13 +3,38 @@
   "globalExtends": [
     "config:base"
   ],
+  "semanticCommits": "enabled",
   "extends": ["group:allNonMajor", "schedule:monthly"],
   "packageRules": [
     {
       "description": "Create a PR whenever there is a new major version",
       "matchUpdateTypes": [
         "major"
       ]
+    },
+    {
+      "description": "Use releasable commit type for runtime dependency updates",
+      "matchManagers": [
+        "npm"
+      ],
+      "matchDepTypes": [
+        "dependencies",
+        "optionalDependencies",
+        "peerDependencies"
+      ],
+      "semanticCommitType": "fix",
+      "semanticCommitScope": "deps"
+    },
+    {
+      "description": "Keep development-only dependency updates non-releasable",
+      "matchManagers": [
+        "npm"
+      ],
+      "matchDepTypes": [
+        "devDependencies"
+      ],
+      "semanticCommitType": "chore",
+      "semanticCommitScope": "deps"
     }
   ],
   "ignorePaths": [