build(deps): bump microsoft/security-devops-action from 1.6.0 to 1.9.1

Bumps [microsoft/security-devops-action](https://github.com/microsoft/security-devops-action) from 1.6.0 to 1.9.1.
- [Release notes](https://github.com/microsoft/security-devops-action/releases)
- [Commits](microsoft/security-devops-action@v1.6.0...v1.9.1)

---
updated-dependencies:
- dependency-name: microsoft/security-devops-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/defender-for-devops.yml

@@ -39,7 +39,7 @@ jobs:
           5.0.x
           6.0.x
     - name: Run Microsoft Security DevOps
-      uses: microsoft/security-devops-action@v1.6.0
+      uses: microsoft/security-devops-action@v1.9.1
       id: msdo
     - name: Upload results to Security tab
       uses: github/codeql-action/upload-sarif@v2