Bump lodash and @types/lodash

Bumps [lodash](https://github.com/lodash/lodash) and [@types/lodash](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/lodash). These dependencies needed to be updated together.

Updates `lodash` from 4.17.19 to 4.17.21
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.19...4.17.21)

Updates `@types/lodash` from 4.14.117 to 4.17.20
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/lodash)

---
updated-dependencies:
- dependency-name: lodash
  dependency-version: 4.17.21
  dependency-type: direct:production
- dependency-name: "@types/lodash"
  dependency-version: 4.17.20
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]