Update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/continuous-integration-terraform.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Check for terraform version mismatch
         run: |
@@ -50,7 +50,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.ref }}
 

.github/workflows/continuous-integration-tflint.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Clone repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup TFLint
         uses: terraform-linters/setup-tflint@v3
         with:

.github/workflows/continuous-integration-tfsec.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Clone repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: tfsec
         uses: aquasecurity/[email protected]
         with: