Bump jest-canvas-mock from 2.2.0 to 2.3.1

Bumps [jest-canvas-mock](https://github.com/hustcc/jest-canvas-mock) from 2.2.0 to 2.3.1.
- [Release notes](https://github.com/hustcc/jest-canvas-mock/releases)
- [Changelog](https://github.com/hustcc/jest-canvas-mock/blob/master/CHANGELOG.md)
- [Commits](https://github.com/hustcc/jest-canvas-mock/commits)

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