fix(deps): bump npm from 6.14.11 to 7.6.3

Bumps [npm](https://github.com/npm/cli) from 6.14.11 to 7.6.3. - [Release notes](https://github.com/npm/cli/releases) - [Changelog](https://github.com/npm/cli/blob/latest/CHANGELOG.md) - [Commits](npm/cli@v6.14.11...v7.6.3) Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]