Fix await flag in class constructor

[raskad]

This Pull Request changes the following:

• Fix await flag in class constructor

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	95,609	95,609	0
Passed	75,687	75,689	+2
Ignored	19,160	19,160	0
Failed	762	760	-2
Panics	0	0	0
Conformance	79.16%	79.17%	+0.00%

Fixed tests (2):

test/language/expressions/class/static-init-await-reference.js [strict mode] (previously Failed)
test/language/expressions/class/static-init-await-reference.js (previously Failed)

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (dd05f53) 45.72% compared to head (536f76f) 45.71%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3388      +/-   ##
==========================================
- Coverage   45.72%   45.71%   -0.01%     
==========================================
  Files         482      482              
  Lines       49177    49174       -3     
==========================================
- Hits        22485    22482       -3     
  Misses      26692    26692              

Files	Coverage Δ
.../statement/declaration/hoistable/class_decl/mod.rs	50.33% <100.00%> (-0.20%)	⬇️

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