Bump ssri from 6.0.1 to 6.0.2
Bumps [ssri](https://github.com/npm/ssri) from 6.0.1 to 6.0.2.
- [Release notes](https://github.com/npm/ssri/releases)
- [Changelog](https://github.com/npm/ssri/blob/v6.0.2/CHANGELOG.md)
- [Commits](https://github.com/npm/ssri/compare/v6.0.1...v6.0.2)
Signed-off-by: dependabot[bot] <[email protected]>