Allow manual release Github workflow. Upgrade action-gh-release to 2.3.2

Author: tuancoltech

.github/workflows/gradle-release.yml

@@ -3,6 +3,7 @@ name: Gradle Release
 on:
   push:
     branches: [ "main" ]
+  workflow_dispatch:
 
 jobs:
   create_git_tag:
@@ -123,7 +124,7 @@ jobs:
         run: md5sum app/build/outputs/apk/release/ai.elimu.calculator-${{ needs.create_git_tag.outputs.tagName }}.apk > app/build/outputs/apk/release/ai.elimu.calculator-${{ needs.create_git_tag.outputs.tagName }}.apk.md5
 
       - name: Upload the signed APK file to GitHub release
-        uses: softprops/action-gh-release@v2.2.2
+        uses: softprops/action-gh-release@v2.3.2
         with:
           tag_name: '${{ needs.create_git_tag.outputs.tagName }}'
           files: |