build(deps): bump peter-evans/create-pull-request in the actions group

Bumps the actions group with 1 update: [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request).


Updates `peter-evans/create-pull-request` from 7.0.2 to 7.0.3
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@d121e62...6cd32fd)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/pin-requirements.yml

@@ -125,7 +125,7 @@ jobs:
           git push -f origin "origin/main:${SIGSTORE_PIN_REQUIREMENTS_BRANCH}"
 
       - name: Open pull request
-        uses: peter-evans/create-pull-request@d121e62763d8cc35b5fb1710e887d6e69a52d3a4 # v7.0.2
+        uses: peter-evans/create-pull-request@6cd32fd93684475c31847837f87bb135d40a2b79 # v7.0.3
         with:
           title: |
             Update pinned requirements for ${{ env.SIGSTORE_RELEASE_TAG }}