Summary:
`xcpretty` is no longer maintained. Let's switch to `xcbeautify`, which is faster and is maintained. I'm also biased because `xcpretty` hid an error from me that `xcbeautify` did not.
## Changelog
[INTERNAL] [CHANGED] - Move CI from `xcpretty` to `xcbeautify`
Pull Request resolved: https://github.com/facebook/react-native/pull/36131
Test Plan:
Locally yarn `yarn test-ios` and got output that looks like this:
<img width="1245" alt="Screenshot 2023-02-11 at 9 34 07 PM" src="https://user-images.githubusercontent.com/6722175/218291538-07760f94-7e52-4919-b603-8a35a623fc9a.png">
I also confirmed a junit report that looks like this was generated:
```xml
<testsuites name="Selected tests" tests="193" failures="0">
<testsuite name="RCTLoggingTests" tests="1" failures="0">
<testcase classname="RCTLoggingTests" name="testLogging" time="0.175" />
</testsuite>
<testsuite name="RCTUIManagerScenarioTests" tests="3" failures="0">
<testcase classname="RCTUIManagerScenarioTests" name="testManagingChildrenToAddRemoveAndMove" time="0.001" />
<testcase classname="RCTUIManagerScenarioTests" name="testManagingChildrenToAddViews" time="0.000" />
<testcase classname="RCTUIManagerScenarioTests" name="testManagingChildrenToRemoveViews" time="0.001" />
</testsuite>
...
```
Reviewed By: cortinico
Differential Revision: D43232774
Pulled By: cipolleschi
fbshipit-source-id: fda4e217d4df55b5088026d6911d3dc6c8c9e824
Saad Najmi
7208cd6384
