[eas-cli] Use Git to resolve root path in no-VCS mode

[sjchmiela]

Why

I was thinking we can offer EAS_NO_VCS=1 as a simple escape hatch for people that are getting weird Git-related issues. One of them may be an old version of Git that does not support our git clone properly.

How

In getRootPath of no-VCS mode, return first of those values (in order):

• EAS_PROJECT_ROOT
• Git root path
• process.cwd()

Test Plan

Added a basic test.

[github-actions]

Size Change: +2.13 kB (0%)

Total Size: 53.4 MB

Filename	Size	Change
./packages/eas-cli/dist/eas-linux-x64.tar.gz	53.4 MB	+2.13 kB (0%)

_{compressed-size-action}

[codecov]

Codecov Report

Attention: Patch coverage is 94.73684% with 1 line in your changes missing coverage. Please review.

Project coverage is 52.68%. Comparing base (9bfc44b) to head (9bf2f2b).

Files with missing lines	Patch %	Lines
packages/eas-cli/src/vcs/clients/noVcs.ts	94.74%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2904      +/-   ##
==========================================
+ Coverage   52.66%   52.68%   +0.03%     
==========================================
  Files         588      588              
  Lines       23210    23220      +10     
  Branches     4614     4614              
==========================================
+ Hits        12221    12232      +11     
+ Misses      10955    10954       -1     
  Partials       34       34              

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[csulit]

Suddenly our git becomes this big. And all of our changes from new eas-build are not reflected in IOS and ANDROID production (IOS crashes in app opening)

[github-actions]

✅ Thank you for adding the changelog entry!

[github-actions]

Subscribed to pull request

File Patterns	Mentions
**/*	@szdziedzic, @khamilowicz, @radoslawkrzemien

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