Move script checking Appium server status to separate file

[szymonrybczak]

Summary:

This PR is small cleanup in .circleci/config.yml file. Request here: #36267 (comment)

Changelog:

[INTERNAL] [CHANGED] - move script checking Appium server status to separate file

Test Plan:

CI Green ✅

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	8,889,799	+4,347
android	hermes	armeabi-v7a	7,939,881	+4,082
android	hermes	x86	9,287,135	+5,165
android	hermes	x86_64	9,191,327	+5,871
android	jsc	arm64-v8a	9,479,667	+6,215
android	jsc	armeabi-v7a	8,422,764	+5,955
android	jsc	x86	9,463,249	+7,051
android	jsc	x86_64	9,780,159	+7,752

Base commit: aab5285
Branch: main

[facebook-github-bot]

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

[facebook-github-bot]

@ryancat merged this pull request in 529c952.