chore(deps): bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...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/image-build-pr-check.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
     - name: Clone source code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - uses: actions/setup-node@v4

.github/workflows/next-build.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Clone source code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/pr-checks.yml

@@ -19,7 +19,7 @@ jobs:
     name: eof-newline
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 10
       - name: Linelint
@@ -28,7 +28,7 @@ jobs:
   digest-validation:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Run script which checks container image digest

.github/workflows/publish-content-push-main.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Clone source code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v4

.github/workflows/regen-yarn-lock-and-copy.yml

@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-22.04
     if: github.actor == 'dependabot[bot]'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 2
           token: ${{secrets.CHE_BOT_GITHUB_TOKEN}}

.github/workflows/release.yml

@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Clone source code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Set up Python 3.9

.github/workflows/shellcheck-pr-check.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
     - name: Clone source code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 1
     - name: ShellCheck

.github/workflows/smoke-test-pr-check.yaml

@@ -27,7 +27,7 @@ jobs:
     steps:
 
       - name: Checkout source code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Build plugin registry image
         run: |

.github/workflows/typescript-pr-check.yml

@@ -29,7 +29,7 @@ jobs:
       with:
         node-version: '20'
     - name: Clone source code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 10
     - name: Get yarn cache directory path

.github/workflows/typescript-publish.yml

@@ -28,7 +28,7 @@ jobs:
         registry-url: 'https://registry.npmjs.org'
         scope: '@eclipse-che'
     - name: Clone source code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Get yarn cache directory path