Bump trufflesecurity/trufflehog from 3.23.0 to 3.28.7 (#685)

Bumps [trufflesecurity/trufflehog](https://github.com/trufflesecurity/trufflehog) from 3.23.0 to 3.28.7.
- [Release notes](https://github.com/trufflesecurity/trufflehog/releases)
- [Changelog](https://github.com/trufflesecurity/trufflehog/blob/main/.goreleaser.yml)
- [Commits](trufflesecurity/trufflehog@v3.23.0...v3.28.7)

---
updated-dependencies:
- dependency-name: trufflesecurity/trufflehog
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Victor Chang <[email protected]>

.github/workflows/security.yml

@@ -31,7 +31,7 @@ jobs:
           fetch-depth: 0
 
       - name: TruffleHog OSS
-        uses: trufflesecurity/trufflehog@v3.23.0
+        uses: trufflesecurity/trufflehog@v3.28.7
         with:
           path: ./
           base: ${{ github.event.repository.default_branch }}