build(deps): bump sigstore/cosign-installer in the gh-actions group

Bumps the gh-actions group with 1 update: [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer).


Updates `sigstore/cosign-installer` from 3.6.0 to 3.7.0
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@4959ce0...dc72c7d)

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

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

.github/workflows/main.yml

@@ -40,7 +40,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # ratchet:actions/checkout@v4
       - name: Install cosign
-        uses: sigstore/cosign-installer@4959ce089c160fddf62f7b42464195ba1a56d382 # ratchet:sigstore/cosign-installer@main
+        uses: sigstore/cosign-installer@dc72c7d5c4d10cd6bcb8cf6e3fd625a9e5e537da # ratchet:sigstore/cosign-installer@main
         with:
           cosign-release: 'v2.2.3'
       - name: Verify runner image