build(deps): bump sigstore/cosign-installer from 3.7.0 to 3.8.0 (#636)

Author: dependabot[bot]

.github/workflows/artifacts.yaml

@@ -67,7 +67,7 @@ jobs:
         uses: docker/setup-buildx-action@f7ce87c1d6bead3e36075b2ce75da1f6cc28aaca # v3.9.0
 
       - name: Set up Cosign
-        uses: sigstore/cosign-installer@dc72c7d5c4d10cd6bcb8cf6e3fd625a9e5e537da # v3.7.0
+        uses: sigstore/cosign-installer@c56c2d3e59e4281cc41dea2217323ba5694b171e # v3.8.0
 
       - name: Set image name
         id: image-name
@@ -216,7 +216,7 @@ jobs:
           version: v3.12.0
 
       - name: Set up Cosign
-        uses: sigstore/cosign-installer@dc72c7d5c4d10cd6bcb8cf6e3fd625a9e5e537da # v3.7.0
+        uses: sigstore/cosign-installer@c56c2d3e59e4281cc41dea2217323ba5694b171e # v3.8.0
 
       - name: Set chart name
         id: chart-name