Bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/publish-documentation.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up JDK
         uses: actions/setup-java@v5
         with:

.github/workflows/publish-snapshot.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up JDK
         uses: actions/setup-java@v5
         with:

.github/workflows/release.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up JDK
         uses: actions/setup-java@v5
         with:

.github/workflows/sanity-check.yml

@@ -14,9 +14,9 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Checkout tls-gen
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: rabbitmq/tls-gen
           path: './tls-gen'

.github/workflows/test-pr.yml

@@ -15,9 +15,9 @@ jobs:
   build:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Checkout tls-gen
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: rabbitmq/tls-gen
           path: './tls-gen'

.github/workflows/test-rabbitmq-alphas.yml

@@ -24,9 +24,9 @@ jobs:
           - pivotalrabbitmq/rabbitmq:main-otp27
     name:  Test against ${{ matrix.rabbitmq-image }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Checkout tls-gen
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: rabbitmq/tls-gen
           path: './tls-gen'

.github/workflows/test-supported-java-versions.yml

@@ -17,9 +17,9 @@ jobs:
             version: '17'
     name:  Test against Java ${{ matrix.distribution }} ${{ matrix.version }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Checkout tls-gen
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: rabbitmq/tls-gen
           path: './tls-gen'

.github/workflows/test.yml

@@ -17,9 +17,9 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Checkout tls-gen
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: rabbitmq/tls-gen
           path: './tls-gen'