Merge pull request #99 from Project516/renovate/actions-checkout-6.x

Update actions/checkout action to v6

Author: Project516

.github/workflows/gradle.yml

@@ -21,7 +21,7 @@ jobs:
       contents: read
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up JDK 25
       uses: actions/setup-java@v5
       with:
@@ -54,7 +54,7 @@ jobs:
       contents: write
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up JDK 25
       uses: actions/setup-java@v5
       with:

.github/workflows/javadoc.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up JDK
         uses: actions/setup-java@v5

.github/workflows/release.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up JDK 25
         uses: actions/setup-java@v5