fix: Get release version from github tag properly

.github/workflows/debug-build.yml

@@ -3,7 +3,7 @@ name: "Debug Build"
 on:
   push:
     branches:
-      - "master"
+      - "flutter-disabled"
     tags-ignore:
       - "*"
 

.github/workflows/release-build.yml

@@ -10,6 +10,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1
+      - name: Set env
+        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
       - name: Set up JDK 12
         uses: actions/setup-java@v1
         with:
@@ -26,10 +28,10 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: flutter build apk
       - name: Add version to APK
-        run: mv build/app/outputs/flutter-apk/app-release.apk revanced-manager-$GITHUB_REF_NAME.apk
+        run: mv build/app/outputs/flutter-apk/app-release.apk revanced-manager-${{ env.RELEASE_VERSION }}.apk
       - name: Publish release APK
         uses: "marvinpinto/action-automatic-releases@latest"
         with:
           repo_token: "${{ secrets.GITHUB_TOKEN }}"
           prerelease: false
-          files: revanced-manager-$GITHUB_REF_NAME.apk
+          files: revanced-manager-${{ env.RELEASE_VERSION }}.apk