Update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/build-all-examples.yml

@@ -18,7 +18,7 @@ jobs:
     name: Linux
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: 'Set up JDK 25'
         uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
         with:

.github/workflows/codeql.yml

@@ -28,7 +28,7 @@ jobs:
           - language: java-kotlin
             build-mode: manual
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: 'Set up JDK 25'
         uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0
         with:

.github/workflows/gradle-wrapper-validation.yml

@@ -18,7 +18,7 @@ jobs:
     name: "Validation"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - uses: gradle/actions/wrapper-validation@4d9f0ba0025fe599b4ebab900eb7f3a1d93ef4c2 # v5.0.0
         with:
           min-wrapper-count: 6

.github/workflows/nohttp.yml

@@ -18,7 +18,7 @@ jobs:
   nohttp:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: 'Run nohttp'
         uses: jbangdev/jbang-action@b924849ade11dbfc3aace8da1c598a84fb3ddfbc # v0.132.1
         with: