Update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
   kyverno:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3.0.0
+      - uses: actions/checkout@v4.1.5
 
       - name: Get kyverno
         run: wget -q -O - https://github.com/kyverno/kyverno/releases/download/v1.5.4/kyverno-cli_v1.5.4_linux_x86_64.tar.gz | tar -C /usr/local/bin -xzf - kyverno
@@ -26,7 +26,7 @@ jobs:
   checkov:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3.0.0
+      - uses: actions/checkout@v4.1.5
 
       - name: Get checkov
         run: pip install checkov
@@ -78,7 +78,7 @@ jobs:
       semantic_version: ${{ steps.semver.outputs.semantic_version }}
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: '0'
       - name: Semver run