fix: should not cache ctx object

[killagu]

Checklist

• npm test passes
• tests and/or benchmarks are included
• documentation is changed or added
• commit message follows commit guidelines

Affected core subsystem(s)

Description of change

[codecov]

Codecov Report

Base: 92.97% // Head: 92.97% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (5273d26) compared to base (91c3627).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #103   +/-   ##
=======================================
  Coverage   92.97%   92.97%           
=======================================
  Files         217      217           
  Lines        4569     4572    +3     
  Branches      478      479    +1     
=======================================
+ Hits         4248     4251    +3     
  Misses        321      321           

Impacted Files	Coverage Δ
plugin/tegg/lib/EggCompatibleObject.ts	90.90% <100.00%> (+1.43%)	⬆️

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