chore(deps): Bump sigstore/scaffolding from 0.6.4 to 0.6.5 (#897)

Bumps [sigstore/scaffolding](https://github.com/sigstore/scaffolding) from 0.6.4 to 0.6.5.
- [Release notes](https://github.com/sigstore/scaffolding/releases)
- [Changelog](https://github.com/sigstore/scaffolding/blob/main/release.md)
- [Commits](sigstore/scaffolding@v0.6.4...v0.6.5)

---
updated-dependencies:
- dependency-name: sigstore/scaffolding
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/kind-cluster-image-policy-tsa.yaml

@@ -67,7 +67,7 @@ jobs:
     - uses: sigstore/cosign-installer@6e04d228eb30da1757ee4e1dd75a0ec73a653e06 # v2
 
     - name: Install cluster + sigstore
-      uses: sigstore/scaffolding/actions/setup@v0.6.4
+      uses: sigstore/scaffolding/actions/setup@v0.6.5
       env:
         INSTALL_TSA: true
       with: