Prevent double checkout for govulncheck.

Signed-off-by: Alexander Adam <alphaone23@gmail.com>

Author: AlphaOne1

.github/workflows/security.yml

@@ -60,6 +60,7 @@ jobs:
           - name: VulnerabilityCheck
             uses: golang/govulncheck-action@b625fbe08f3bccbe446d94fbf87fcc875a4f50ee # v1.0.4
             with:
+                repo-checkout: false
                 output-format: sarif
                 output-file: govulncheck-results.sarif