build: use .flutter-version file for github actions

.github/workflows/release.yml

@@ -11,7 +11,20 @@ permissions:
   pull-requests: write
 
 jobs:
+  setup:
+    runs-on: ubuntu-latest
+    outputs:
+      flutter-version: ${{ steps.read.outputs.version }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          sparse-checkout: .flutter-version
+          sparse-checkout-cone-mode: false
+      - id: read
+        run: echo "version=$(cat .flutter-version | tr -d '[:space:]')" >> "$GITHUB_OUTPUT"
+
   lint:
+    needs: setup
     runs-on: ubuntu-latest
 
     steps:
@@ -21,7 +34,7 @@ jobs:
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
-          flutter-version: "3.41.7"
+          flutter-version: ${{ needs.setup.outputs.flutter-version }}
           cache: true
 
       - name: Cache pub dependencies
@@ -45,6 +58,7 @@ jobs:
         run: flutter analyze --no-fatal-infos
 
   test:
+    needs: setup
     runs-on: ubuntu-latest
 
     steps:
@@ -54,7 +68,7 @@ jobs:
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
-          flutter-version: "3.41.7"
+          flutter-version: ${{ needs.setup.outputs.flutter-version }}
           cache: true
 
       - name: Cache pub dependencies
@@ -91,7 +105,7 @@ jobs:
         fastlane/metadata/ios/en-US/changelogs
 
   build-android:
-    needs: release-please
+    needs: [setup, release-please]
     if: ${{ needs.release-please.outputs.release_created }}
     runs-on: ubuntu-latest
 
@@ -109,7 +123,7 @@ jobs:
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
-          flutter-version: "3.41.7"
+          flutter-version: ${{ needs.setup.outputs.flutter-version }}
           cache: true
 
       - name: Cache pub dependencies
@@ -180,7 +194,7 @@ jobs:
             build/app/outputs/bundle/release/pantry-${{ needs.release-please.outputs.version }}.aab
 
   build-ios:
-    needs: release-please
+    needs: [setup, release-please]
     if: false # TEMPORARILY DISABLED — was: ${{ needs.release-please.outputs.release_created }}
     runs-on: macos-latest
 
@@ -191,7 +205,7 @@ jobs:
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
-          flutter-version: "3.41.7"
+          flutter-version: ${{ needs.setup.outputs.flutter-version }}
           cache: true
 
       - name: Cache pub dependencies