feat(jsruntime): async/await

[masnagam]

Closes #196

[github-actions]

Bencher Report

Branch	340/merge
Testbed	ubuntu-latest

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• Latency

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Benchmark	Latency	nanoseconds (ns)
htmlparser/parse/lipsum.html	📈 view plot ⚠️ NO THRESHOLD	277,010.00
htmlparser/parse/medium-fragment.html	📈 view plot ⚠️ NO THRESHOLD	96,358.00
htmlparser/parse/wikipedia.html	📈 view plot ⚠️ NO THRESHOLD	5,734,700.00
jsruntime/fib/16	📈 view plot ⚠️ NO THRESHOLD	6,545,000.00
jsruntime/fib/24	📈 view plot ⚠️ NO THRESHOLD	8,370,400.00
jsruntime/fib/32	📈 view plot ⚠️ NO THRESHOLD	93,785,000.00

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[codecov]

Codecov Report

Attention: Patch coverage is 81.51659% with 273 lines in your changes missing coverage. Please review.

Project coverage is 78.65%. Comparing base (8d2903c) to head (00ebc6f).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
libs/jsruntime/src/llvmir/compiler/mod.rs	79.19%	81 Missing and 7 partials ⚠️
libs/jsruntime/src/llvmir/compiler/peer.rs	66.48%	61 Missing ⚠️
libs/jsruntime/src/llvmir/bridge.rs	77.55%	33 Missing ⚠️
libs/jsruntime/src/llvmir/compiler/control_flow.rs	77.00%	23 Missing ⚠️
libs/jsruntime/src/semantics/scope.rs	50.00%	21 Missing ⚠️
libs/jsruntime/src/tasklet.rs	85.83%	13 Missing and 4 partials ⚠️
libs/jsparser/src/syntax/mod.rs	85.26%	14 Missing ⚠️
bins/jstb/src/main.rs	0.00%	8 Missing ⚠️
libs/jsruntime/src/function.rs	83.67%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #340      +/-   ##
==========================================
- Coverage   78.72%   78.65%   -0.07%     
==========================================
  Files          68       69       +1     
  Lines       23073    24064     +991     
  Branches    23073    24064     +991     
==========================================
+ Hits        18164    18928     +764     
- Misses       4657     4877     +220     
- Partials      252      259       +7     

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