Bump peter-evans/create-pull-request from 3 to 4 (#14)

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 3 to 4.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@v3...v4)

---
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>

Closes #15

Author: dependabot[bot]

.github/workflows/ipxe_version.yaml

@@ -29,7 +29,7 @@ jobs:
           sed -Ei 's/((ref|key): (ipxe-)?)[0-9a-f]{40}/\1${{ steps.version.outputs.sha }}/' action.yaml
 
       - name: Create pull request
-        uses: peter-evans/create-pull-request@v3
+        uses: peter-evans/create-pull-request@v4
         with:
           title: ':arrow_up: Bump ipxe/ipxe to ${{ steps.version.outputs.sha_short }}'
           body: 'https://github.com/ipxe/ipxe/commits/${{ steps.version.outputs.sha }}'