changes the bot from github-action to stirlingbot (#2755)

# Description of Changes

This PR introduces updates to the GitHub Actions workflow for
`pre_commit.yml`. The main changes are:

- **What was changed:**
- Removed the conditional check to exclude `dependabot[bot]` from
triggering the workflow.
- Added a step to generate a GitHub App token using
`actions/create-github-app-token`.
  - Added a step to retrieve the user ID for the GitHub App bot.
- Updated the git configuration to use the GitHub App credentials for
commits.
- Improved commit logic to check for changes before attempting a pull
request.
- Updated the pull request creation step to use the dynamically
generated GitHub App credentials.
  
- **Why the change was made:**
- To enhance security and ensure that commits and pull requests are made
using GitHub App credentials instead of the default
`github-actions[bot]`.
  - To provide better traceability and reduce reliance on static tokens.
  
- **Challenges encountered:**
- Adjusting the logic to dynamically generate tokens and handle changes
without disrupting existing workflows.
- Ensuring compatibility with the `peter-evans/create-pull-request`
action.

Closes # (issue_number)

---

## Checklist

### General

- [x] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [x] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [x] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [x] I have performed a self-review of my own code
- [x] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [x] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.

.github/workflows/pre_commit.yml

@@ -8,7 +8,6 @@ permissions:
 
 jobs:
   pre-commit:
-    if: ${{ github.event.pull_request.user.login != 'dependabot[bot]' }}
     runs-on: ubuntu-latest
     permissions:
       contents: write
@@ -19,6 +18,23 @@ jobs:
         with:
           egress-policy: audit
 
+      - name: Generate GitHub App Token
+        id: generate-token
+        uses: actions/create-github-app-token@c1a285145b9d317df6ced56c09f525b5c2b6f755 # v1.11.1
+        with:
+          app-id: ${{ secrets.GH_APP_ID }}
+          private-key: ${{ secrets.GH_APP_PRIVATE_KEY }}
+
+      - name: Get GitHub App User ID
+        id: get-user-id
+        run: echo "user-id=$(gh api "/users/${{ steps.generate-token.outputs.app-slug }}[bot]" --jq .id)" >> $GITHUB_OUTPUT
+        env:
+          GH_TOKEN: ${{ steps.generate-token.outputs.token }}
+
+      - id: committer
+        run: |
+          echo "string=${{ steps.generate-token.outputs.app-slug }}[bot] <${{ steps.get-user-id.outputs.user-id }}+${{ steps.generate-token.outputs.app-slug }}[bot]@users.noreply.github.com>"  >> "$GITHUB_OUTPUT"
+
       - name: Checkout repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
@@ -35,25 +51,25 @@ jobs:
         continue-on-error: true
       - name: Set up git config
         run: |
-          git config --global user.name "github-actions[bot]"
-          git config --global user.email "github-actions[bot]@users.noreply.github.com"
+          git config --global user.name ${{ steps.generate-token.outputs.app-slug }}[bot]
+          git config --global user.email "${{ steps.get-user-id.outputs.user-id }}+${{ steps.generate-token.outputs.app-slug }}[bot]@users.noreply.github.com"
       - name: git add
         run: |
           git add .
-          git diff --staged --quiet || git commit -m ":file_folder: pre-commit
-          > Made via .github/workflows/pre_commit.yml" || echo "pre-commit: no changes"
+          git diff --staged --quiet || echo "CHANGES_DETECTED=true" >> $GITHUB_ENV
       - name: Create Pull Request
+        if: env.CHANGES_DETECTED == 'true'
         uses: peter-evans/create-pull-request@67ccf781d68cd99b580ae25a5c18a1cc84ffff1f # v7.0.6
         with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          commit-message: "ci: 🤖 format everything with pre-commit"
-          committer: GitHub Action <action@github.com>
-          author: GitHub Action <action@github.com>
+          token: ${{ steps.generate-token.outputs.token }}
+          commit-message: ":file_folder: pre-commit"
+          committer: ${{ steps.committer.outputs.string }}
+          author: ${{ steps.committer.outputs.string }}
           signoff: true
           branch: pre-commit
-          title: "🤖 format everything with pre-commit by <github-actions[bot]>"
+          title: "🤖 format everything with pre-commit by <${{ steps.generate-token.outputs.app-slug }}>"
           body: |
-            Auto-generated by [create-pull-request][1]
+            Auto-generated by [create-pull-request][1] with **${{ steps.generate-token.outputs.app-slug }}**
 
             [1]: https://github.com/peter-evans/create-pull-request
           draft: false