Changed actions/checkout version from v3 to v4

.github/workflows/static-checking.yml

@@ -12,7 +12,7 @@ jobs:
   cfn:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python 3.11
         uses: actions/setup-python@v4
         with:
@@ -43,7 +43,7 @@ jobs:
   python:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python 3.11
         uses: actions/setup-python@v4
         with:
@@ -59,7 +59,7 @@ jobs:
   shellcheck:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: install requirements
         run: |
           sudo apt update