Update documents to run Cobalt on Linux in evergreen mode

[jonastsai]

android document is updated as well for generating XML test result

b/361540371
b/362655498

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 57.55%. Comparing base (eb3f507) to head (b7f5077).
Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4108      +/-   ##
==========================================
- Coverage   57.57%   57.55%   -0.03%     
==========================================
  Files        1746     1745       -1     
  Lines       86403    86403              
==========================================
- Hits        49747    49729      -18     
- Misses      36656    36674      +18     

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[oxve]

The lint job failed with the errors below. Do you have the pre-commit hooks set up locally? They would reformat the files for you automatically when you try to commit.

Fix End of Files.........................................................Failed
- hook id: end-of-file-fixer
- exit code: 1
- files were modified by this hook

Fixing cobalt/site/docs/development/setup-linux.md

Trim Trailing Whitespace.................................................Failed
- hook id: trailing-whitespace
- exit code: 1
- files were modified by this hook

Fixing cobalt/site/docs/development/setup-linux.md

[jonastsai]

Thanks Oscar. I have pre-commit hook installed now. I will update the documents all together with the review comments.

[hlwarriner]

Thanks for improving the docs!

[oxve]

Lgtm from my pov