build(deps): bump peter-evans/create-pull-request from 7.0.11 to 8.0.0

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 7.0.11 to 8.0.0.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](22a9089034...98357b18bf)

---
updated-dependencies:
- dependency-name: peter-evans/create-pull-request
  dependency-version: 8.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/update-colorschemes.yml

@@ -62,7 +62,7 @@ jobs:
         run: nix build .#ghostty
 
       - name: Create pull request
-        uses: peter-evans/create-pull-request@22a9089034f40e5a961c8808d113e2c98fb63676 # v7.0.11
+        uses: peter-evans/create-pull-request@98357b18bf14b5342f975ff684046ec3b2a07725 # v8.0.0
         with:
           title: Update iTerm2 colorschemes
           base: main