Bump actions/checkout from 4 to 5

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/adoc-html.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-node@v4
       with:
         node-version: 20

.github/workflows/backport-workflow.yml

@@ -28,7 +28,7 @@ jobs:
 
       - name: Checkout repository
         if: ${{ steps.check_pr_labels.outputs.result == 'true' }}
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           # ensure the backport target branch is checked out, too
           fetch-depth: 0

.github/workflows/maven-pr-builder.yaml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-java@v4
         with:

.github/workflows/sync-backport-labels.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - id: get-maintenance-versions
         uses: hazelcast/hazelcast/.github/actions/get-supported-maintenance-versions@master

.github/workflows/to-plain-html.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:              
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           token: ${{ secrets.TO_HTML }}      
       - name: Asciidoc to html

.github/workflows/validate.yml

@@ -12,6 +12,6 @@ jobs:
 
     steps:
       - name: Checkout Current Repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Validate Docs
         uses: hazelcast/hazelcast-docs-tools/.github/actions/validate-docs@actions/v1