Update CI workflow to make gradlew executable before running Gradle tasks

Author: mohdaquib

.github/workflows/ci.yml

@@ -15,6 +15,9 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Make gradlew executable
+        run: chmod +x gradlew
+
       - uses: actions/setup-java@v4
         with:
           java-version: 17
@@ -43,6 +46,9 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Make gradlew executable
+        run: chmod +x gradlew
+
       - uses: actions/setup-java@v4
         with:
           java-version: 17