chore(gha): update all external actions to current version

Author: cgoetz-inovex

.github/workflows/zizmor.yaml

@@ -16,7 +16,7 @@ jobs:
       security-events: write # Required to upload SARIF to code scanning.
     steps:
       - name: Checkout
-        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false