Bump the actions group with 2 updates

Bumps the actions group with 2 updates: [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) and [actions/attest-build-provenance](https://github.com/actions/attest-build-provenance).


Updates `sigstore/cosign-installer` from 3.5.0 to 3.6.0
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@59acb62...4959ce0)

Updates `actions/attest-build-provenance` from 1.4.0 to 1.4.1
- [Release notes](https://github.com/actions/attest-build-provenance/releases)
- [Changelog](https://github.com/actions/attest-build-provenance/blob/main/RELEASE.md)
- [Commits](actions/attest-build-provenance@210c191...310b0a4)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions
- dependency-name: actions/attest-build-provenance
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: actions
...

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

.github/workflows/release.yml

@@ -26,7 +26,7 @@ jobs:
 
       - uses: imjasonh/setup-crane@31b88efe9de28ae0ffa220711af4b60be9435f6e # v0.4
 
-      - uses: sigstore/cosign-installer@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 # v3.5.0
+      - uses: sigstore/cosign-installer@4959ce089c160fddf62f7b42464195ba1a56d382 # v3.6.0
 
       - uses: anchore/sbom-action/download-syft@d94f46e13c6c62f59525ac9a1e147a99dc0b9bf5 # v0.17.0
 
@@ -61,7 +61,7 @@ jobs:
           COSIGN_YES: true
 
       - name: Generate build provenance attestation
-        uses: actions/attest-build-provenance@210c1913531870065f03ce1f9440dd87bc0938cd # v1.4.0
+        uses: actions/attest-build-provenance@310b0a4a3b0b78ef57ecda988ee04b132db73ef8 # v1.4.1
         with:
           subject-name: ghcr.io/sigstore/gitsign
           subject-digest: ${{ steps.digest.outputs.digest }}

.github/workflows/validate-release.yml

@@ -25,7 +25,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-go-
 
-      - uses: sigstore/cosign-installer@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 # v3.5.0
+      - uses: sigstore/cosign-installer@4959ce089c160fddf62f7b42464195ba1a56d382 # v3.6.0
       - uses: anchore/sbom-action/download-syft@d94f46e13c6c62f59525ac9a1e147a99dc0b9bf5 # v0.17.0
       - uses: goreleaser/goreleaser-action@286f3b13b1b49da4ac219696163fb8c1c93e1200 # v6.0.0
         with: