Bump actions/checkout from 2.4.0 to 3.0.0
Bump actions/checkout from 2.4.0 to 3.0.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.4.0 to 3.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2.4.0...v3.0.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
kevin1024/vcrpy,kevin1024/vcrpy