chore(deps): update sigstore/cosign-installer digest to b6ee8f8

Author: renovate[bot]

.github/workflows/release.yml

@@ -70,7 +70,7 @@ jobs:
        # Install the cosign tool except on PR
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
-        uses: sigstore/cosign-installer@dc72c7d5c4d10cd6bcb8cf6e3fd625a9e5e537da
+        uses: sigstore/cosign-installer@b6ee8f83b9a8b8ef7f46b5a8ff326f488b386693
 
       # Login against a container registry
       - name: Log into registry ghcr.io