fix: Fix runner outdated image

Author: PerfectSlayer

.github/workflows/vuln-check.yml

@@ -19,7 +19,7 @@ jobs:
       contents: read # for actions/checkout to fetch code
       security-events: write # for github/codeql-action/upload-sarif to upload SARIF results
     name: Run Trivy scanner
-    runs-on: "ubuntu-20.04"
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0