Update action versions

Author: michel-kraemer

.github/workflows/gradle.yml

@@ -17,9 +17,9 @@ jobs:
 
     name: JDK ${{ matrix.java }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up JDK
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           java-version: ${{ matrix.java }}
           architecture: x64

.github/workflows/stale.yml

@@ -8,7 +8,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v9
+      - uses: actions/stale@v10
         with:
           # Number of days of inactivity before an issue becomes stale
           days-before-stale: 60