chore(deps): bump sigstore/cosign-installer from 2.8.0 to 2.8.1 (#5533)

Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 2.8.0 to 2.8.1.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](7cc35d7fdb...9becc61764)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/helm-release.yaml

@@ -47,7 +47,7 @@ jobs:
           version: v3.8.0
 
       - name: Install Cosign
-        uses: sigstore/cosign-installer@7cc35d7fdbe70d4278a0c96779081e6fac665f88 # v2.8.0
+        uses: sigstore/cosign-installer@9becc617647dfa20ae7b1151972e9b3a2c338a2b # v2.8.1
         with:
           cosign-release: 'v1.13.0'
 

.github/workflows/release.yaml

@@ -130,7 +130,7 @@ jobs:
           version: 0.35.0
 
       - name: Install Cosign
-        uses: sigstore/cosign-installer@7cc35d7fdbe70d4278a0c96779081e6fac665f88 # v2.8.0
+        uses: sigstore/cosign-installer@9becc617647dfa20ae7b1151972e9b3a2c338a2b # v2.8.1
         with:
           cosign-release: 'v1.13.0'
 

.github/workflows/reuse.yaml

@@ -62,7 +62,7 @@ jobs:
           go-version: ~1.18.6
 
       - name: Install Cosign
-        uses: sigstore/cosign-installer@7cc35d7fdbe70d4278a0c96779081e6fac665f88 # v2.8.0
+        uses: sigstore/cosign-installer@9becc617647dfa20ae7b1151972e9b3a2c338a2b # v2.8.1
         with:
           cosign-release: 'v1.13.0'