Do not persist credentials

Author: FlorianMichael

.github/workflows/build.yml

@@ -7,6 +7,8 @@ jobs:
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - name: Validate Gradle Wrapper
         uses: gradle/actions/wrapper-validation@v4
       - name: Set up JDK 21

.github/workflows/update-gradle-wrapper.yml

@@ -10,6 +10,8 @@ jobs:
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v4
+        with:
+          persist-credentials: false
       - name: Set up JDK 21
         uses: actions/setup-java@v4
         with: