Bump tree-kill from 1.2.1 to 1.2.2
Bump tree-kill from 1.2.1 to 1.2.2

Bumps [tree-kill](https://github.com/pkrumins/node-tree-kill) from 1.2.1 to 1.2.2.
- [Release notes](https://github.com/pkrumins/node-tree-kill/releases)
- [Commits](https://github.com/pkrumins/node-tree-kill/compare/v1.2.1...v1.2.2)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
digabi/math-editor,digabi/rich-text-editor,digabi/math-editor,digabi/rich-text-editor,digabi/rich-text-editor