Bump slsa-framework/slsa-verifier from 2.5.1 to 2.6.0

Bumps [slsa-framework/slsa-verifier](https://github.com/slsa-framework/slsa-verifier) from 2.5.1 to 2.6.0.
- [Release notes](https://github.com/slsa-framework/slsa-verifier/releases)
- [Changelog](https://github.com/slsa-framework/slsa-verifier/blob/main/RELEASE.md)
- [Commits](slsa-framework/slsa-verifier@v2.5.1...v2.6.0)

---
updated-dependencies:
- dependency-name: slsa-framework/slsa-verifier
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/release.yml

@@ -98,7 +98,7 @@ jobs:
     permissions: read-all
     steps:
       - name: Install the verifier
-        uses: slsa-framework/slsa-verifier/actions/installer@v2.5.1
+        uses: slsa-framework/slsa-verifier/actions/installer@v2.6.0
 
       - name: Download assets
         env: