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]>

Author: dependabot[bot]

.github/workflows/codeql-analysis.yml

@@ -28,7 +28,7 @@ jobs:
     # Check that the Jekyll can actually build
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Build the site in the jekyll/builder container
         run: |
           docker run \
@@ -43,7 +43,7 @@ jobs:
     # Check markdown files are markdown-lint compliant
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Lint markdown files with markdown-lint
         uses: articulate/[email protected]
         with:

.github/workflows/deploy.yml

@@ -11,7 +11,7 @@ jobs:
     outputs:
       target: ${{ steps.set-output.outputs.target }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: get deployment target
         run: |
@@ -44,7 +44,7 @@ jobs:
     if: needs.set-deploy-type.outputs.target == 'gh-pages'
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Deploy Jekyll Site
       uses: sujaykundu777/[email protected]
@@ -59,7 +59,7 @@ jobs:
     if: needs.set-deploy-type.outputs.target == 'firebase'
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: setup ruby
       uses: ruby/setup-ruby@v1

.github/workflows/jekyll.yml

@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup Ruby
         uses: ruby/setup-ruby@55283cc23133118229fd3f97f9336ee23a179fcf # v1.146.0
         with: