build(deps): bump sigstore/cosign-installer

Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 37f387123cf7d4270454d0c351cf673ef28a8662 to 11086d25041f77fe8fe7b9ea4e48e3b9192b8f19.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@37f3871...11086d2)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
...

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

.github/workflows/goreleaser.yml

@@ -25,7 +25,7 @@ jobs:
       with:
         go-version: "1.20"
         check-latest: true
-    - uses: sigstore/cosign-installer@37f387123cf7d4270454d0c351cf673ef28a8662 # tag=v2.8.1
+    - uses: sigstore/cosign-installer@11086d25041f77fe8fe7b9ea4e48e3b9192b8f19 # tag=v2.8.1
     - name: Set up QEMU
       uses: docker/setup-qemu-action@2b82ce82d56a2a04d2637cd93a637ae1b359c0a7 # tag=v2.2.0
     - name: Docker login