chore(deps): bump the actions group across 1 directory with 2 updates

Bumps the actions group with 2 updates in the / directory: [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) and [anchore/sbom-action](https://github.com/anchore/sbom-action).


Updates `sigstore/cosign-installer` from 3.7.0 to 3.8.0
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@v3.7.0...v3.8.0)

Updates `anchore/sbom-action` from 0.17.9 to 0.18.0
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Changelog](https://github.com/anchore/sbom-action/blob/main/RELEASE.md)
- [Commits](anchore/sbom-action@v0.17.9...v0.18.0)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions
- dependency-name: anchore/sbom-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions
...

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

.github/workflows/releaser-master.yml

@@ -29,8 +29,8 @@ jobs:
           go-version-file: go.mod
           cache: true
 
-      - uses: sigstore/cosign-installer@v3.7.0
-      - uses: anchore/sbom-action/download-syft@v0.17.9
+      - uses: sigstore/cosign-installer@v3.8.0
+      - uses: anchore/sbom-action/download-syft@v0.18.0
 
       - uses: docker/login-action@v3
         with:

.github/workflows/releaser-nightly.yml

@@ -23,8 +23,8 @@ jobs:
           go-version-file: go.mod
           cache: true
 
-      - uses: sigstore/cosign-installer@v3.7.0
-      - uses: anchore/sbom-action/download-syft@v0.17.9
+      - uses: sigstore/cosign-installer@v3.8.0
+      - uses: anchore/sbom-action/download-syft@v0.18.0
 
       - uses: docker/login-action@v3
         with: