Merge pull request #459 from stefanprodan/cosign-v3

Sign release artifacts with cosign v3

Author: stefanprodan

.github/workflows/release.yml

@@ -19,8 +19,6 @@ jobs:
       - uses: actions/checkout@v6
       - uses: ./.github/actions/runner-cleanup
       - uses: sigstore/cosign-installer@v4.0.0
-        with:
-          cosign-release: v2.6.1
       - uses: fluxcd/flux2/action@v2.8.1
       - uses: stefanprodan/timoni/actions/setup@v0.26.0
       - name: Setup Notation CLI