chore(deps): Bump sigstore/cosign-installer from 2.8.0 to 2.8.1 (#332)

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](sigstore/cosign-installer@7cc35d7...9becc61)

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

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

.github/workflows/build.yaml

@@ -35,7 +35,7 @@ jobs:
     steps:
       - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v2.4.0
 
-      - uses: sigstore/cosign-installer@7cc35d7fdbe70d4278a0c96779081e6fac665f88 # v2.3.0
+      - uses: sigstore/cosign-installer@9becc617647dfa20ae7b1151972e9b3a2c338a2b # v2.3.0
 
       - uses: actions/setup-go@c4a742cab115ed795e34d4513e2cf7d472deb55f # v2.2.0
         with:

.github/workflows/kind-cluster-image-policy.yaml

@@ -71,7 +71,7 @@ jobs:
       with:
         mirror: mirror.gcr.io
 
-    - uses: sigstore/cosign-installer@7cc35d7fdbe70d4278a0c96779081e6fac665f88 # v2.3.0
+    - uses: sigstore/cosign-installer@9becc617647dfa20ae7b1151972e9b3a2c338a2b # v2.3.0
 
     - name: Install cluster + sigstore
       uses: sigstore/scaffolding/actions/setup@main

.github/workflows/kind-e2e-cosigned.yaml

@@ -57,7 +57,7 @@ jobs:
     - name: Install yq
       uses: mikefarah/yq@1f0881fb5faf371694bfa108753cda0b824f5037 # v4.27.3
 
-    - uses: sigstore/cosign-installer@7cc35d7fdbe70d4278a0c96779081e6fac665f88 # v2.3.0
+    - uses: sigstore/cosign-installer@9becc617647dfa20ae7b1151972e9b3a2c338a2b # v2.3.0
 
     - name: Setup mirror
       uses: chainguard-dev/actions/setup-mirror@main

.github/workflows/policy-tester-examples.yml

@@ -50,7 +50,7 @@ jobs:
         make policy-tester
 
     - name: Install cosign
-      uses: sigstore/cosign-installer@7cc35d7fdbe70d4278a0c96779081e6fac665f88 # v2.5.0
+      uses: sigstore/cosign-installer@9becc617647dfa20ae7b1151972e9b3a2c338a2b # v2.5.0
 
     - name: Setup local registry
       run: |

.github/workflows/release.yaml

@@ -23,7 +23,7 @@ jobs:
           go-version: 1.18
           check-latest: true
 
-      - uses: sigstore/cosign-installer@7cc35d7fdbe70d4278a0c96779081e6fac665f88 # v2
+      - uses: sigstore/cosign-installer@9becc617647dfa20ae7b1151972e9b3a2c338a2b # v2
 
       - uses: anchore/sbom-action/download-syft@b5042e9d19d8b32849779bfe17673ff84aec702d # v0.11.0