Update actions/checkout action to v6 (#9206)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -49,7 +49,7 @@ jobs:
     name: "Validation"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: gradle/actions/wrapper-validation@v5
       - name: Validate Renovate
         uses: rinchsan/renovate-config-validator@v0.2.0
@@ -63,7 +63,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -98,7 +98,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -137,7 +137,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -162,7 +162,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -188,7 +188,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install Old JDK 8
         uses: actions/setup-java@v5
@@ -220,7 +220,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -246,7 +246,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -272,7 +272,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -299,7 +299,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -324,7 +324,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -349,7 +349,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -380,7 +380,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDKs
         uses: actions/setup-java@v5
@@ -407,7 +407,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -433,7 +433,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -458,7 +458,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -507,7 +507,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -589,7 +589,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -630,7 +630,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -688,7 +688,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5
@@ -711,7 +711,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5

.github/workflows/containers.yml

@@ -22,7 +22,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5

.github/workflows/docs.yml

@@ -22,7 +22,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure JDK
         uses: actions/setup-java@v5

.github/workflows/publish.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: macos-15
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-java@v5
         with:
           distribution: 'zulu'