V2 Update PR-Auto-Deploy-V2.yml to use common tag (#4046)

# Description of Changes

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Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)
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---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] 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/devGuide/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)

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

.github/workflows/PR-Auto-Deploy-V2.yml

@@ -261,26 +261,31 @@ jobs:
 
       - name: Build and push V2 frontend image
         if: steps.check-frontend.outputs.exists == 'false'
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
+        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83  # v6.18.0
         with:
           context: .
           file: ./docker/frontend/Dockerfile
           push: true
-          tags: ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-frontend-${{ steps.commit-hashes.outputs.frontend_short }}
+          tags: |
+            ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-frontend-${{ steps.commit-hashes.outputs.frontend_short }}
+            ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-frontend-latest
           build-args: VERSION_TAG=v2-alpha
           platforms: linux/amd64
-
+      
       - name: Build and push V2 backend image
         if: steps.check-backend.outputs.exists == 'false'
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
+        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83  # v6.18.0
         with:
           context: .
           file: ./docker/backend/Dockerfile
           push: true
-          tags: ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-backend-${{ steps.commit-hashes.outputs.backend_short }}
+          tags: |
+            ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-backend-${{ steps.commit-hashes.outputs.backend_short }}
+            ${{ secrets.DOCKER_HUB_USERNAME }}/test:v2-backend-latest
           build-args: VERSION_TAG=v2-alpha
           platforms: linux/amd64
 
+
       - name: Set up SSH
         run: |
           mkdir -p ~/.ssh/