build(deps-dev): bump @types/google.maps from 3.48.7 to 3.50.4 (#698)

Bumps [@types/google.maps](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/google.maps) from 3.48.7 to 3.50.4.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/google.maps)

---
updated-dependencies:
- dependency-name: "@types/google.maps"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> 1a85088

Author: googlemaps-bot