Make the e2e tests not land blocking

[cipolleschi]

Summary

Given that the e2e tests are quite flaky, we want to reduce the flakyness making them non land blocking.
The idea is to:

1. always have them green in CircleCI
2. store the test logs in CircleCI artifacts, so we can explore them if needed.
3. use danger to read the artifacts from CircleCI and post a message to inform the user whether the Test ends up successfully or not.

Changelog:

[Internal] - Make e2e tests non land-blocking. Use Danger to report the status of the E2E jobs

Test Plan:

CircleCI stays green, logs are uploaded as artifacts.

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	8,963,889	-1,646
android	hermes	armeabi-v7a	n/a	--
android	hermes	x86	n/a	--
android	hermes	x86_64	n/a	--
android	jsc	arm64-v8a	9,553,297	-1,126
android	jsc	armeabi-v7a	n/a	--
android	jsc	x86	n/a	--
android	jsc	x86_64	n/a	--

Base commit: 2692f20
Branch: main

[facebook-github-bot]

@cipolleschi has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[facebook-github-bot]

@cipolleschi has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[github-actions]

This pull request was successfully merged by @cipolleschi in a058586.

^{When will my fix make it into a release? | Upcoming Releases}