Bumps the ci group with 3 updates: [anchore/sbom-action](https://github.com/anchore/sbom-action), [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) and [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request).

Updates `anchore/sbom-action` from 0.15.5 to 0.15.8
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Commits](https://github.com/anchore/sbom-action/compare/24b0d5238516480139aa8bc6f92eeb7b54a9eb0a...b6a39da80722a2cb0ef5d197531764a89b5d48c3)

Updates `sigstore/cosign-installer` from 3.3.0 to 3.4.0
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](https://github.com/sigstore/cosign-installer/compare/9614fae9e5c5eddabb09f90a270fcb487c9f7149...e1523de7571e31dbe865fd2e80c5c7c23ae71eb4)

Updates `peter-evans/create-pull-request` from 5.0.2 to 6.0.0
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](https://github.com/peter-evans/create-pull-request/compare/153407881ec5c347639a548ade7d8ad1d6740e38...b1ddad2c994a25fbc81a28b3ec0e368bb2021c50

)

---
updated-dependencies:
- dependency-name: anchore/sbom-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: ci
- dependency-name: sigstore/cosign-installer
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci
- dependency-name: peter-evans/create-pull-request
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: ci
...

Signed-off-by: dependabot[bot] <support@github.com>
(cherry picked from commit 976f40b6)