Delete unnessary git add commands

.github/workflows/publish-release.yml

@@ -34,8 +34,6 @@ jobs:
           git config user.email ${{ secrets.BALLERINA_BOT_EMAIL }}
           git checkout -b release-${VERSION}
           git add gradle.properties
-          git add tool/tool-mi/BalTool.toml
-          git add ballerina/CompilerPlugin.toml
           git commit -m "Move dependencies to stable version" || echo "No changes to commit"
 
       - name: Grant execute permission for gradlew