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](https://github.com/actions/checkout/compare/v2...v4)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/00-basic.yml

@@ -15,7 +15,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       # Runs a single command using the runners shell
       - name: Run a one-line script

.github/workflows/00a-basic-filters.yml

@@ -35,7 +35,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       # Runs a single command using the runners shell
       - name: Run a one-line script

.github/workflows/03-steps.yml

@@ -50,11 +50,11 @@ jobs:
         shell: perl {0}    
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       # Reference a specific commit
-      - uses: actions/checkout@a81bbbf8298c0fa03ea29cdc473d45769f953675
+      - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5
       # Reference the major version of a release
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       # Reference a specific version
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       # Reference a branch
       - uses: actions/checkout@main
 

.github/workflows/04-environment-variables.yaml

@@ -27,7 +27,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       # Runs a single command using the runners shell
       - name: Run a one-line script

.github/workflows/04-environment-variables2.yaml

@@ -29,7 +29,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       # Runs a single command using the runners shell
       - name: Run a one-line script

.github/workflows/05-conditionals.yml

@@ -27,7 +27,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Run Hello
         run: echo "$Greeting, $Name!"

.github/workflows/08-secrets.yml

@@ -26,7 +26,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       # Runs a single command using the runners shell
       - name: Pass via Context

.github/workflows/09-node.js-matrix.yml

@@ -27,7 +27,7 @@ jobs:
         os: [ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v3
       with:

.github/workflows/10-dotnet.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Setup .NET
       uses: actions/setup-dotnet@v3
       with:

.github/workflows/docker-image.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Login to Docker Hub
       uses: docker/login-action@v2
       with:

.github/workflows/lint.yml

@@ -8,7 +8,7 @@ jobs:
     name: Lint code
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Lint code
       run: |

.github/workflows/marp-pages.yml

@@ -25,7 +25,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Copy images
         run: mkdir build && cp -R slides/img build/img && cp -R slides/themes build/themes
 

.github/workflows/pr-validation.yml

@@ -18,7 +18,7 @@ jobs:
   deploy: 
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: azure/login@v1
         name: Sign in to Azure
         with:

.github/workflows/super-linter.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # Full git history is needed to get a proper list of changed files within `super-linter`
           fetch-depth: 0