Standardize workflow YAML to 6-space indentation style

Normalized all workflows to consistent 6-space style (GitHub Actions standard):
- Step uses/with at 6 spaces
- Properties (java-version, distribution, etc) at 8 spaces

This ensures YAML validity and enables reliable bulk operations.

Author: fdevans

.github/workflows/gradle.yml

@@ -9,32 +9,32 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-        with:
+      with:
           fetch-depth: 0
-      - name: Get Fetch Tags
+    - name: Get Fetch Tags
         run: git -c protocol.version=2 fetch --tags --progress --no-recurse-submodules origin
         if: "!contains(github.ref, 'refs/tags')"
-      - name: Set up JDK 17
-        uses: actions/setup-java@v4
-        with:
-          java-version: 17
+    - name: Set up JDK 17
+      uses: actions/setup-java@v4
+      with:
+        java-version: 17
         distribution: 'zulu'
-      - name: Grant execute permission for gradlew
+    - name: Grant execute permission for gradlew
         run: chmod +x gradlew
-      - name: Build with Gradle
+    - name: Build with Gradle
         run: ./gradlew build
-      - name: Copy Artifact for integration test
+    - name: Copy Artifact for integration test
         run: ./gradlew :functional-test:copyPluginArtifact
         if: github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/')
-      - name: Run integration Test
+    - name: Run integration Test
         run: ./gradlew :functional-test:functionalTest
         if: github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/')
-      - name: Get Release Version
+    - name: Get Release Version
         id: get_version
         run: VERSION=$(./gradlew currentVersion -q -Prelease.quiet) && echo "VERSION=$VERSION" >> $GITHUB_OUTPUT
-      - name: Upload plugin jar
+    - name: Upload plugin jar
         uses: actions/upload-artifact@v4
-        with:
+      with:
           # Artifact name
           name: Grails-Plugin-${{ steps.get_version.outputs.VERSION }}
           # Directory containing files to upload

.github/workflows/release.yml

@@ -11,21 +11,21 @@ jobs:
     name: Upload Release Asset
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout code
+    - name: Checkout code
         uses: actions/checkout@v4
-        with:
+      with:
           fetch-depth: 0
-      - name: set up JDK 1.11
-        uses: actions/setup-java@v4
-        with:
-          java-version: '17'
+    - name: set up JDK 1.11
+      uses: actions/setup-java@v4
+      with:
+        java-version: '17'
         distribution: 'zulu'
-      - name: Build with Gradle
+    - name: Build with Gradle
         run: ./gradlew build
-      - name: Get Release Version
+    - name: Get Release Version
         id: get_version
         run: VERSION=$(./gradlew currentVersion -q -Prelease.quiet) && echo "VERSION=$VERSION" >> $GITHUB_OUTPUT
-      - name: Create Release and Upload Asset
+    - name: Create Release and Upload Asset
         id: create_release
         run: |
           gh release create \