Bump aquasecurity/trivy-action from 0.28.0 to 0.29.0 (kubeflow#2332)

Bumps [aquasecurity/trivy-action](https://github.com/aquasecurity/trivy-action) from 0.28.0 to 0.29.0.
- [Release notes](https://github.com/aquasecurity/trivy-action/releases)
- [Commits](aquasecurity/trivy-action@0.28.0...0.29.0)

---
updated-dependencies:
- dependency-name: aquasecurity/trivy-action
  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>
(cherry picked from commit 270b09e)

.github/workflows/trivy-image-scanning.yaml

@@ -15,7 +15,7 @@ jobs:
         run: make print-IMAGE >> $GITHUB_ENV
 
       - name: trivy scan for github security tab
-        uses: aquasecurity/trivy-action@0.28.0
+        uses: aquasecurity/trivy-action@0.29.0
         with:
           image-ref: '${{ env.IMAGE }}'
           format: 'sarif'