ci(deps): bump peter-evans/create-pull-request from 4 to 5 (#696)

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 4 to 5.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@v4...v5)

---
updated-dependencies:
- dependency-name: peter-evans/create-pull-request
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/optimise-images.yml

@@ -55,7 +55,7 @@ jobs:
  if: >
  github.event_name != 'pull_request' &&
  steps.calibre.outputs.markdown != ''
- uses: peter-evans/create-pull-request@v4
+ uses: peter-evans/create-pull-request@v5
  with:
  title: "chore: auto-compress images"
  branch-suffix: timestamp