chore(ci): upgrade GitHub Actions to Node 24-compatible versions (#1810)

.github/workflows/flutter-build.yml

@@ -21,10 +21,10 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
           java-version: '17'
@@ -93,7 +93,7 @@ jobs:
           fi
 
       - name: Upload APK artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: app-release-apk
           path: |
@@ -109,7 +109,7 @@ jobs:
 
       - name: Upload AAB artifact
         if: steps.check_secrets.outputs.has_keystore == 'true'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: app-release-aab
           path: mobile/build/app/outputs/bundle/release/app-release.aab
@@ -122,7 +122,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Flutter
         uses: subosito/flutter-action@v2
@@ -167,7 +167,7 @@ jobs:
           echo "For distribution, you need to configure code signing with Apple certificates" >> build/ios-build-info.txt
 
       - name: Upload iOS build artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ios-build-unsigned
           path: |