chore(deps): update sigstore/cosign-installer digest to 84f54a2

Author: renovate[bot]

.github/workflows/release.yml

@@ -36,7 +36,7 @@ jobs:
       # Install the cosign tool except on PR
       # https://github.com/sigstore/cosign-installer
       - name: Install cosign
-        uses: sigstore/cosign-installer@4959ce089c160fddf62f7b42464195ba1a56d382
+        uses: sigstore/cosign-installer@84f54a2bcd1ecf70e51a05388183dce4e1487230
         with:
           cosign-release: 'v1.7.1'