chore(deps): bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...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/__test-action-matrix-outputs.yml

@@ -8,7 +8,7 @@ jobs:
     name: Tests for set/get matrix outputs    
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - id: set-matrix-output-1
         uses: ./actions/set-matrix-output

.github/workflows/__test-action-slugify.yml

@@ -8,7 +8,7 @@ jobs:
     name: Tests for slugify action
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - id: slugify
         uses: ./actions/slugify

.github/workflows/generate-dependabot-config.yml

@@ -24,7 +24,7 @@ jobs:
     name: Generate Dependabot Config
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Generate Dependabot Glob
         uses: Makeshift/[email protected]

.github/workflows/linter.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: "ubuntu-latest"
     name: Run checks
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 

.github/workflows/release-actions.yml

@@ -33,7 +33,7 @@ jobs:
       latest-tag: ${{ steps.get-latest-tag.outputs.tag }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -118,7 +118,7 @@ jobs:
       matrix:
         action: ${{ fromJson(needs.prepare-release.outputs.changed-actions) }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: 📖 Generate README
         uses: bitflight-devops/[email protected]
@@ -147,7 +147,7 @@ jobs:
       matrix:
         workflow: ${{ fromJson(needs.prepare-release.outputs.changed-workflows) }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: 📖 Generate README
         id: generate-readme
@@ -178,7 +178,7 @@ jobs:
       actions: write
 
     steps:
-      - uses: actions/checkout@v3.1.0
+      - uses: actions/checkout@v4
 
       - uses: actions/download-artifact@v3
         with: