feat(deps): migrate to actions/create-github-app-token (#22)

Replace deprecated `tibdex/github-app-token` action with the 
new and official `actions/create-github-app-token` action.

This required removing numerous token related inputs for the action, as 
the new action does not support the same sets of inputs.

BREAKING CHANGE: Removed various app token related inputs not available 
in new underlying action. Please see updated list of inputs in README.

.github/workflows/ci.yml

@@ -6,8 +6,8 @@ jobs:
   docs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
         with:
           node-version: 20
       - run: make docs
@@ -19,14 +19,14 @@ jobs:
     runs-on: ubuntu-latest
     if: github.ref == 'refs/heads/main'
     steps:
-      - uses: jimeh/release-please-manifest-action@v2
+      - uses: jimeh/release-please-manifest-action@bfd8923580a274363ff9fbaf6d07484fbc8d9c6e # v2.0.0
         id: release
         with:
           app-id: ${{ secrets.RELEASE_BOT_APP_ID }}
           private-key: ${{ secrets.RELEASE_BOT_PRIVATE_KEY }}
       - name: MAJOR and MAJOR.MINOR tags
         if: ${{ steps.release.outputs.release_created }}
-        uses: jimeh/update-tags-action@v1
+        uses: jimeh/update-tags-action@e58fa0f2f874a12bf0eb90ef8ab4256808c0f373 # v1.0.1
         with:
           tags: |
             v${{ steps.release.outputs.major }}