Bump actions/checkout from 3 to 4

.github/workflows/check_links.yml

@@ -15,7 +15,7 @@ jobs:
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - id: set-matrix
         run: |
           set -x
@@ -33,7 +33,7 @@ jobs:
     - name: Install markdown-link-check
       run: sudo npm install -g markdown-link-check
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Run markdown-link-check against *.md files
       run: markdown-link-check --config "$(pwd)/.markdown-link-check.json" --verbose --quiet "${{ matrix.file_to_check }}"

.github/workflows/linting.yml

@@ -11,7 +11,7 @@ jobs:
   markdownlint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Pull markdownlint/markdownlint:latest Image
       run: docker pull markdownlint/markdownlint:latest
     - name: Run markdownlint against *.md files

.github/workflows/spellcheck.yml

@@ -11,7 +11,7 @@ jobs:
   spellcheck:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Pull pipelinecomponents/markdown-spellcheck Image
       run: docker pull pipelinecomponents/markdown-spellcheck
     - name: Spellcheck Markdown Files