chore(deps): update sigstore/cosign-installer action to v3.8.1 (#78)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/release.yaml

@@ -36,14 +36,14 @@ jobs:
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-go-
-      - uses: sigstore/cosign-installer@c56c2d3e59e4281cc41dea2217323ba5694b171e # v3.8.0
+      - uses: sigstore/cosign-installer@d7d6bc7722e3daa8354c50bcb52f4837da5e9b6a # v3.8.1
       - uses: anchore/sbom-action/download-syft@f325610c9f50a54015d37c8d16cb3b0e2c8f4de0 # v0.18.0
 
       - name: Set Up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
       - name: Set up Cosign
-        uses: sigstore/cosign-installer@v3.8.0
+        uses: sigstore/cosign-installer@v3.8.1
 
       - name: Login to Registry
         uses: docker/login-action@v3