misc: switch to ubuntu runner

.github/workflows/release.yml

@@ -15,7 +15,7 @@ on:
 
 jobs:
   build:
-    runs-on: macos-latest
+    runs-on: ubuntu-latest
     environment: production
 
     steps:
@@ -27,12 +27,10 @@ jobs:
       - name: Set up Flutter
         uses: subosito/flutter-action@v2
         with:
-          channel: "stable"
+          flutter-version: '3.27.x'
+          channel: 'stable'
           cache: true
 
-      - name: Install dependencies
-        run: flutter pub get
-
       - name: Extract app version
         id: extract_version
         uses: NiklasLehnfeld/flutter-version-number-action@main