Bump get-pkg-repo from 4.2.1 to 5.0.0 in /theme (#666)

* Bump get-pkg-repo from 4.2.1 to 5.0.0 in /theme

Bumps [get-pkg-repo](https://github.com/conventional-changelog/get-pkg-repo) from 4.2.1 to 5.0.0.
- [Release notes](https://github.com/conventional-changelog/get-pkg-repo/releases)
- [Changelog](https://github.com/conventional-changelog/get-pkg-repo/blob/master/CHANGELOG.md)
- [Commits](conventional-changelog/get-pkg-repo@get-pkg-repo-v4.2.1...v5.0.0)

---
updated-dependencies:
- dependency-name: get-pkg-repo
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

* chore: update lockfile

---------

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