ci: pin Python 3.10 so sharp can build on Actions

.github/workflows/manual-rebuild-dev.yml

@@ -36,6 +36,12 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
 
+      # sharp@0.23.4 falls back to node-gyp; old gyp needs Python <3.11 ('rU' mode).
+      - name: Use Python 3.10 for node-gyp
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
       - name: Build server app using Nodejs
         run: |
           docker ps

.github/workflows/manual-rebuild-prod.yml

@@ -36,6 +36,12 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
 
+      # sharp@0.23.4 falls back to node-gyp; old gyp needs Python <3.11 ('rU' mode).
+      - name: Use Python 3.10 for node-gyp
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
       - name: Build server app using Nodejs
         run: |
           docker ps

.github/workflows/openshift.yml

@@ -40,6 +40,12 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
 
+      # sharp@0.23.4 falls back to node-gyp; old gyp needs Python <3.11 ('rU' mode).
+      - name: Use Python 3.10 for node-gyp
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
       - name: Build server app using Nodejs
         run: |
           docker ps

.github/workflows/review.yml

@@ -30,6 +30,12 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
 
+      # sharp@0.23.4 falls back to node-gyp; old gyp needs Python <3.11 ('rU' mode).
+      - name: Use Python 3.10 for node-gyp
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
       - name: Build server app using Nodejs
         run: |
           docker ps