chore(deps): update gradle/actions action to v6

Author: renovate[bot]

.github/workflows/gradle.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Check out repo
         uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: Validate Gradle wrapper
-        uses: gradle/actions/wrapper-validation@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5
+        uses: gradle/actions/wrapper-validation@39e147cb9de83bb9910b8ef8bd7fff0ee20fcd6f # v6
 
   # Basic Compliance check. Checks if codeStyle is correct and if reuse
   # is applied correctly
@@ -45,7 +45,7 @@ jobs:
           distribution: 'sapmachine'
           cache: 'gradle'
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5
+        uses: gradle/actions/setup-gradle@39e147cb9de83bb9910b8ef8bd7fff0ee20fcd6f # v6
       - name: Check code style
         run: ./gradlew spotlessCheck
 
@@ -68,7 +68,7 @@ jobs:
           distribution: 'sapmachine'
           cache: 'gradle'
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5
+        uses: gradle/actions/setup-gradle@39e147cb9de83bb9910b8ef8bd7fff0ee20fcd6f # v6
       - name: Build and Test
         run: ./gradlew check -x spotlessCheck
       - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
@@ -98,7 +98,7 @@ jobs:
           java-version: 17
           distribution: 'sapmachine'
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5
+        uses: gradle/actions/setup-gradle@39e147cb9de83bb9910b8ef8bd7fff0ee20fcd6f # v6
       - name: Build and Test
         run: ./gradlew check -x spotlessCheck
         env:
@@ -125,7 +125,7 @@ jobs:
           distribution: 'sapmachine'
           cache: 'gradle'
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5
+        uses: gradle/actions/setup-gradle@39e147cb9de83bb9910b8ef8bd7fff0ee20fcd6f # v6
       - name: Publish Plugin
         env:
           GRADLE_PUBLISH_KEY: ${{secrets.PUBLISH_KEY}}