chore: Bump aquasecurity/trivy-action from 0.20.0 to 0.29.0

Bumps [aquasecurity/trivy-action](https://github.com/aquasecurity/trivy-action) from 0.20.0 to 0.29.0.
- [Release notes](https://github.com/aquasecurity/trivy-action/releases)
- [Commits](aquasecurity/trivy-action@0.20.0...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]>

.github/workflows/scheduled-scan.yaml

@@ -12,7 +12,7 @@ jobs:
         uses: actions/checkout@v4
       - name: Run Trivy filesystem vulnerability scanner
         id: scan
-        uses: aquasecurity/trivy-action@0.20.0
+        uses: aquasecurity/trivy-action@0.29.0
         with:
           scan-type: 'fs'
           format: 'sarif'
@@ -34,7 +34,7 @@ jobs:
       - name: Build image
         run: make docker-image DOCKER_IMAGE=ekco:nightly
       - name: Run Trivy image vulnerability scanner
-        uses: aquasecurity/trivy-action@0.20.0
+        uses: aquasecurity/trivy-action@0.29.0
         with:
           image-ref: 'ekco:nightly'
           format: 'sarif'