chore(deps): bump sigstore/scaffolding from 0.7.3 to 0.7.4 (#10646)

Bumps [sigstore/scaffolding](https://github.com/sigstore/scaffolding) from 0.7.3 to 0.7.4.
- [Release notes](https://github.com/sigstore/scaffolding/releases)
- [Changelog](https://github.com/sigstore/scaffolding/blob/main/release.md)
- [Commits](bfc40f4d3a...26f31cb72c)

---
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/conformance.yaml

@@ -646,7 +646,7 @@ jobs:
         uses: kyverno/action-install-chainsaw@573a9c636f7c586f86ecb9de9674176daf80ee29 # v0.2.5
       # create cluster
       - name: Create kind cluster and setup Sigstore Scaffolding
-        uses: sigstore/scaffolding/actions/setup@bfc40f4d3aa430f28cec9c68b628df983601810e
+        uses: sigstore/scaffolding/actions/setup@26f31cb72ca848bb0273fcbd7a4ebf187ec4d711
         with:
           version: main
           k8s-version: ${{ matrix.k8s-version.version }}