fix(deps): bump semver and @octokit/core

Removes [semver](https://github.com/npm/node-semver). It's no longer used after updating ancestor dependency [@octokit/core](https://github.com/octokit/core.js). These dependencies need to be updated together.


Removes `semver`

Updates `@octokit/core` from 2.5.2 to 4.2.4
- [Release notes](https://github.com/octokit/core.js/releases)
- [Commits](octokit/core.js@v2.5.2...v4.2.4)

---
updated-dependencies:
- dependency-name: semver
  dependency-type: indirect
- dependency-name: "@octokit/core"
  dependency-type: direct:production
...

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