Bump lodash from 4.17.17 to 4.17.19 in /lsp-sample

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.17 to 4.17.19.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/commits/4.17.19)

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