watch: remove NODE_OPTIONS from spawn call to prevent infinite loop

[viiktordev]

Fixes #61740

The loop occurs during the child process spawn in watch mode. I removed NODE_OPTIONS from the environment before calling spawn(), and it solved the issue.

I also confirmed that all other flags set in NODE_OPTIONS continue to work after the code update.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.71%. Comparing base (37ff1ea) to head (e9e40d5).
⚠️ Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #61838      +/-   ##
==========================================
- Coverage   89.74%   89.71%   -0.03%     
==========================================
  Files         675      675              
  Lines      204735   204797      +62     
  Branches    39348    39352       +4     
==========================================
+ Hits       183737   183738       +1     
- Misses      13269    13330      +61     
  Partials     7729     7729              

see 36 files with indirect coverage changes

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