chore(deps): bump brotli from 1.1.0 to 1.2.0 in /packages/sample-app

Bumps [brotli](https://github.com/google/brotli) from 1.1.0 to 1.2.0. - [Release notes](https://github.com/google/brotli/releases) - [Changelog](https://github.com/google/brotli/blob/master/CHANGELOG.md) - [Commits](google/brotli@go/cbrotli/v1.1.0...v1.2.0) --- updated-dependencies: - dependency-name: brotli dependency-version: 1.2.0 dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]