lib: add protection in worker_thread.js

[hotpineapple]

add getter and setter to protect global object's property _eval

[himself65]

we had it here

node/lib/internal/process/pre_execution.js

Line 263 in fe91ac5

addReadOnlyProcessAlias('_eval', '--eval');

is this necessary?

or we just just add writable: false

Putting ObjectDefineProperty on top level may cause some performance regression imo

[codecov]

Codecov Report

❌ Patch coverage is 67.85714% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.05%. Comparing base (0bbe7c3) to head (7080f38).
⚠️ Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/internal/main/worker_thread.js	67.85%	9 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##             main   #59258    +/-   ##
========================================
  Coverage   90.05%   90.05%            
========================================
  Files         648      648            
  Lines      191106   191222   +116     
  Branches    37454    37477    +23     
========================================
+ Hits       172091   172196   +105     
+ Misses      11641    11634     -7     
- Partials     7374     7392    +18     

Files with missing lines	Coverage Δ
lib/internal/main/worker_thread.js	92.02% <67.85%> (-2.39%)	⬇️

... and 37 files with indirect coverage changes

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