Bump actions/checkout from 2 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v4)

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

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

.github/workflows/build-custom.yml

@@ -74,7 +74,7 @@ jobs:
         echo "Run tutorial partitioned-pipe: ${{ github.event.inputs.runTutorialPartitionedPipe }}"
         echo "Tutorials branch: ${{ github.event.inputs.branchTutorials }}"
     - name: Check out repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         ref: ${{ github.event.inputs.refAdapter }}
     - name: Install OpenFOAM (no cache)

.github/workflows/build.yml

@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
     - name: Check out repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Setup caches
       uses: actions/cache@v4
       id: cache-id

.github/workflows/check-format.yml

@@ -5,7 +5,7 @@ jobs:
     name: Check formatting (clang-format)
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Run clang-format style check for C/C++ programs.
       uses: jidicula/clang-format-action@main
       with:

.github/workflows/check-links.yml

@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Check links in markdown files (markdown-link-check)
         uses: gaurav-nelson/github-action-markdown-link-check@v1
         with:

.github/workflows/check-markdown.yml

@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Lint markdown files (markdownlint)
         uses: articulate/actions-markdownlint@v1
         with:

.github/workflows/check-shell.yml

@@ -5,6 +5,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Lint shell scripts (shellcheck)
         uses: ludeeus/action-shellcheck@master