chore(deps): bump sigstore/cosign-installer from 1.4.1 to 2.0.0 (#2866)

Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 1.4.1 to 2.0.0.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@v1.4.1...v2.0.0)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/build.yml

@@ -85,7 +85,7 @@ jobs:
             ./dist/*.rpm
             ./dist/*.apk
           key: ${{ runner.os }}-go-${{ hashFiles('**/*.go') }}-${{ hashFiles('**/go.sum') }}
-      - uses: sigstore/cosign-installer@v1.4.1
+      - uses: sigstore/cosign-installer@v2.0.0
       - uses: anchore/sbom-action/download-syft@v0.6.0
       - name: setup-validate-krew-manifest
         # TODO: replace this once https://github.com/kubernetes-sigs/krew/pull/736 is merged