chore(deps): update gitguardian/ggshield-action action to v1.39.0

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -22,7 +22,7 @@ jobs:
         with:
           fetch-depth: 0 # fetch all history so multiple commits can be scanned
       - name: GitGuardian scan
-        uses: GitGuardian/ggshield-action@v1.18.1
+        uses: GitGuardian/ggshield-action@v1.39.0
         env:
           GITHUB_PUSH_BEFORE_SHA: ${{ github.event.before }}
           GITHUB_PUSH_BASE_SHA: ${{ github.event.base }}