Update CI: replace create-file-action and add free disk space to release

- Replace `finnp/create-file-action` with shell command to create `ignoreConfig.dart` in build and apk jobs.
- Add `jlumbroso/free-disk-space` step to the release job.

Author: CarGuo

.github/workflows/ci.yml

@@ -18,9 +18,6 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
 
-
-
-
     steps:
       - name: Free Disk Space
         uses: jlumbroso/free-disk-space@main
@@ -32,7 +29,6 @@ jobs:
           large-packages: true
           docker-images: true
           swap-storage: true
-
       - uses: actions/checkout@v2
       - uses: actions/setup-java@v2
         with:
@@ -41,10 +37,9 @@ jobs:
       - uses: subosito/flutter-action@v1
         with:
           flutter-version: '3.38.4'
-      - uses: finnp/create-file-action@master
-        env:
-          FILE_NAME: lib/common/config/ignoreConfig.dart
-          FILE_DATA: class NetConfig { static const CLIENT_ID = "${{ secrets.CLIENT_ID }}"; static const CLIENT_SECRET = "${{ secrets.CLIENT_SECRET }}";}
+      - name: Create config file
+        run: |
+          echo 'class NetConfig { static const CLIENT_ID = "${{ secrets.CLIENT_ID }}"; static const CLIENT_SECRET = "${{ secrets.CLIENT_SECRET }}";}' > lib/common/config/ignoreConfig.dart
       - run: flutter pub get
       - run: flutter build apk --release --target-platform=android-arm64 --no-shrink
 
@@ -63,10 +58,9 @@ jobs:
       - uses: subosito/flutter-action@v1
         with:
           flutter-version: '3.38.4'
-      - uses: finnp/create-file-action@master
-        env:
-          FILE_NAME: lib/common/config/ignoreConfig.dart
-          FILE_DATA: class NetConfig { static const CLIENT_ID = "${{ secrets.CLIENT_ID }}"; static const CLIENT_SECRET = "${{ secrets.CLIENT_SECRET }}";}
+      - name: Create config file
+        run: |
+          echo 'class NetConfig { static const CLIENT_ID = "${{ secrets.CLIENT_ID }}"; static const CLIENT_SECRET = "${{ secrets.CLIENT_SECRET }}";}' > lib/common/config/ignoreConfig.dart
       - run: flutter pub get
       - run: flutter build apk --release --target-platform=android-arm64 --no-shrink
       - name: Upload APK
@@ -80,6 +74,16 @@ jobs:
     if: startsWith(github.ref, 'refs/tags/')
     runs-on: ubuntu-latest
     steps:
+      - name: Free Disk Space
+        uses: jlumbroso/free-disk-space@main
+        with:
+          tool-cache: false
+          android: false
+          dotnet: true
+          haskell: true
+          large-packages: true
+          docker-images: true
+          swap-storage: true
       - name: Download APK from build
         uses: actions/download-artifact@v4
         with: