Jest conflict with CRA

[evenchange4]

PACKAGES

ex:

• https://github.com/MCS-Lite/mcs-lite/blob/master/packages/babel-preset-mcs-lite/package.json#L16
• https://github.com/MCS-Lite/mcs-lite/blob/master/packages/mcs-lite-ui/package.json#L25

Code to reproduce the issue:

Expected behavior:

Actual behavior:

Versions of packages used: