[SVLS-8973] Add us2 gov site option

[TalUsvyatsky]

Add us2.ddog-gov.com as a site option

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.69%. Comparing base (e462c84) to head (28e9872).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #700   +/-   ##
=======================================
  Coverage   77.69%   77.69%           
=======================================
  Files          12       12           
  Lines        1112     1112           
  Branches      350      350           
=======================================
  Hits          864      864           
  Misses        118      118           
  Partials      130      130           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.