Ensure gradlew is executable in CI workflow

Author: mohdaquib

.github/workflows/ci.yml

@@ -14,6 +14,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
       - uses: actions/setup-java@v4
         with:
           distribution: temurin
@@ -27,6 +29,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
       - uses: actions/setup-java@v4
         with:
           distribution: temurin
@@ -40,6 +44,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Make gradlew executable
+        run: chmod +x ./gradlew
       - uses: actions/setup-java@v4
         with:
           distribution: temurin