Update dependency eslint-plugin-jsx-a11y to v6.2.3

Thalia Technicie
2019-07-01T09:31:00+02:00

This MR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [eslint-plugin-jsx-a11y](https://github.com/evcohen/eslint-plugin-jsx-a11y) | devDependencies | patch | [`6.2.2` -> `6.2.3`](https://renova...