add envs for rtx ruby core plugin

[dfang]

#677

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -2.77 ⚠️

Comparison is base (57a7340) 88.13% compared to head (4457d68) 85.37%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #682      +/-   ##
==========================================
- Coverage   88.13%   85.37%   -2.77%     
==========================================
  Files         129      129              
  Lines       11169    11176       +7     
==========================================
- Hits         9844     9541     -303     
- Misses       1325     1635     +310     

Impacted Files	Coverage Δ
src/env.rs	83.73% <0.00%> (-4.92%)	⬇️
src/plugins/core/ruby.rs	19.61% <0.00%> (-65.47%)	⬇️

... and 8 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.