perf: create PR for app requirements

Author: andhreljaKern

.github/workflows/pi_build.yml

@@ -52,8 +52,45 @@ jobs:
       matrix: 
         include: ${{ fromJson(needs.pi-diff.outputs.include) }}
     steps:
-      - name: Print matrix values - ${{ matrix.parent_image_type }}
-        run: echo "${{ toJson(matrix) }}"
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          repository: '${{ github.repository_owner }}/refinery-${{ matrix.parent_image_type }}-parent-image'
+          submodules: 'true'
+      
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+
+      - name: Install Dependencies
+        run: python -m pip install pip-tools
+      
+      - name: Compile Requirements
+        run: pip-compile requirements/${{ matrix.parent_image_type }}-requirements.in
+
+      - name: Create PR - ${{ matrix.app }}
+        run: |
+          git clone https://oauth2:${{ secrets.GH_TOKEN }}@github.com/${{ github.repository_owner }}/${{ matrix.app }}.git
+          cd ${{ matrix.app }}
+
+          git config user.email "devtools@kern.ai"
+          git config user.name "GitHub Actions"
+
+          git checkout -b ${{ github.event.pull_request.head.ref }} || git checkout ${{ github.event.pull_request.head.ref }}
+          git push origin ${{ github.event.pull_request.head.ref }} && git pull origin ${{ github.event.pull_request.head.ref }}
+
+          git add requirements/${{ matrix.parent_image_type }}-requirements.txt
+          git commit -m "ci: update ${{ matrix.parent_image_type }}-requirements.txt"
+          git push origin ${{ github.event.pull_request.head.ref }}
+          echo "::notice::${{ matrix.app }} updated to origin/${{ github.event.pull_request.head.ref }}"
+
+          gh pr create \
+            --title "${{ github.event.pull_request.title }}" \
+            --body "${{ github.event.pull_request.body }}" \
+            --base dev \
+            --head ${{ github.event.pull_request.head.ref }} \
+            --repo ${{ github.repository_owner }}/${{ matrix.app }}
 
   # pi-build:
   #   name: 'Parent Images: Docker Build'