feat: add polyfilled fetch support

[sgammon]

Summary

Adds polyfilled support for the Fetch API (#1218).

• feat: add fetch polyfill to runtime
• fix: allow class lookup from guest context
• chore: rebuild js runtime modules

Changelog

feat(runtime): add polyfill for `fetch` api
chore(graalvm): rebuild polyfills and modules

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.17%. Comparing base (c00e776) to head (1c66a5d).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1229   +/-   ##
=======================================
  Coverage   53.16%   53.17%           
=======================================
  Files         429      429           
  Lines       17242    17244    +2     
  Branches     3125     3125           
=======================================
+ Hits         9167     9169    +2     
  Misses       7055     7055           
  Partials     1020     1020           

Flag	Coverage Δ
jvm	53.17% <100.00%> (+<0.01%)	⬆️
lib	53.17% <100.00%> (+<0.01%)	⬆️

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Files with missing lines	Coverage Δ
...ckages/cli/src/main/kotlin/elide/tool/cli/Elide.kt	28.33% <100.00%> (+0.60%)	⬆️
...de/runtime/core/internals/graalvm/GraalVMEngine.kt	83.78% <100.00%> (+0.11%)	⬆️
...main/kotlin/elide/runtime/plugins/js/JavaScript.kt	93.12% <100.00%> (ø)

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