Bump actions/checkout from 3 to 4 (#23)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build-docker.yaml

@@ -33,7 +33,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Docker build
         run: make docker_build

.github/workflows/lint-docker.yaml

@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # To lint multiple docker files
       # Ref: https://github.com/hadolint/hadolint-action/issues/54#issuecomment-1130157411

.github/workflows/lint-markdown.yaml

@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Ruby
         # See https://github.com/ruby/setup-ruby#versioning

.github/workflows/lint-python.yaml

@@ -28,7 +28,7 @@ jobs:
     steps:
 
       - name: Checkout respository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Check Python code for formatting
         uses: rickstaa/action-black@v1

.github/workflows/lint-yaml.yaml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Check YAML files with linter
         uses: ibiqlik/action-yamllint@v3
         with:

.github/workflows/test-python.yaml

@@ -34,7 +34,7 @@ jobs:
     steps:
 
       - name: Checkout respository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Python3
         uses: actions/setup-python@v4