feat: leverage the heroku credential manager for auth (#291)

Author: michaelmalave

.github/workflows/ci.yml

@@ -11,8 +11,11 @@ jobs:
         uses: actions/setup-node@v6
         with:
           node-version: 22.x
+          registry-url: https://registry.npmjs.org
           cache: npm
       - run: npm ci
+        env: 
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN_HEROKU_CREDENTIAL_MANAGER }}
       - name: linting
         run: npm run lint
 
@@ -28,7 +31,11 @@ jobs:
         uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node-version }}
+          registry-url: https://registry.npmjs.org
+          cache: npm
       - run: npm ci
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN_HEROKU_CREDENTIAL_MANAGER }}
       - name: unit tests
         run: npm test
       - name: linting

examples/whoami.ts

@@ -10,7 +10,7 @@ class StatusCommand extends Command {
 
   async run() {
     if (process.env.HEROKU_API_KEY) this.warn('HEROKU_API_KEY is set')
-    if (!this.heroku.auth) this.notloggedin()
+    if (!(await this.heroku.getAuth())) this.notloggedin()
     try {
       const {body: account} = await this.heroku.get<Heroku.Account>('/account', {retryAuth: false})
       ux.stdout(account.email)