automate to catch bugs earlier, we'll stay with requirements that lac…

…k *.VERSION.txt filename

.github/workflows/deps.yml

@@ -0,0 +1,60 @@
+name: Upgrade
+
+on:
+  workflow_dispatch: null
+  schedule:
+    # Every Monday, 7:30 AM (Berlin)
+    - cron: "30 5 * * 1"
+
+# Backend
+jobs:
+  pip_compile_multi:
+    if: github.repository == 'maxplanck-ie/parkour2'
+    runs-on: ubuntu-latest
+    strategy:
+      max-parallel: 4
+      matrix:
+        python-version: ['3.10', 3.11, 3.12]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          cache: "pip"
+          python-version: ${{ matrix.python-version }}
+
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          cache: "pip"
+          python-version: "3.11"
+
+      - run: pip install pip-compile-multi
+      - run: |
+        ls backend/requirements/*.in | cut -d'/' -f3 | rev | cut -d. -f2 | rev | \
+           xargs -I{} mv backend/requirements/{}.in backend/requirements/{}.${{ matrix.python-version }}.in
+        pip-compile-multi -d backend/requirements --backtracking --autoresolve --allow-unsafe
+      
+      - uses: peter-evans/create-pull-request@v6
+        with:
+          branch: create-pull-request/pip-compile-multi
+          title: Update python dependencies.
+          body: Update all python dependencies.
+          delete-branch: true
+          labels: |
+            Dependencies
+          commit-message: |
+            Update python dependencies.
+
+            Run of `pip-compile-multi` to upgrade all python dependencies.
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r backend/requirements/prod.${{ matrix.python-version }}.txt
+
+
+# Frontend (VueJS)
+# TODO: see Makefile rule: ncu.