ci(github-actions): bump trufflesecurity/trufflehog

Bumps the github-actions group with 1 update: [trufflesecurity/trufflehog](https://github.com/trufflesecurity/trufflehog).


Updates `trufflesecurity/trufflehog` from 3.91.1 to 3.91.2
- [Release notes](https://github.com/trufflesecurity/trufflehog/releases)
- [Commits](trufflesecurity/trufflehog@aade3bf...821e8b9)

---
updated-dependencies:
- dependency-name: trufflesecurity/trufflehog
  dependency-version: 3.91.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/scans.yml

@@ -390,7 +390,7 @@ jobs:
         with:
           fetch-depth: (${{ github.event.pull_request.commits || 2 }} + 1)
 
-      - uses: trufflesecurity/trufflehog@aade3bff5594fe8808578dd4db3dfeae9bf2abdc # v3
+      - uses: trufflesecurity/trufflehog@821e8b9e5cdf8dc484dd23e06f78941fcf6b9191 # v3
         with:
           extra_args: --results=verified,unknown