fix(react): useObservablesProxy calls setState during a render

[divdavem]

fix #1027

[codecov]

Codecov Report

Attention: Patch coverage is 94.73684% with 3 lines in your changes missing coverage. Please review.

Project coverage is 91.81%. Comparing base (e17789c) to head (ce1208c).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
react/headless/src/utils/stores.ts	94.44%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1028      +/-   ##
==========================================
+ Coverage   91.79%   91.81%   +0.01%     
==========================================
  Files          99       99              
  Lines        2644     2674      +30     
  Branches      438      442       +4     
==========================================
+ Hits         2427     2455      +28     
- Misses        140      141       +1     
- Partials       77       78       +1     

Flag	Coverage Δ
e2e	83.20% <94.73%> (+0.11%)	⬆️
unit	84.44% <ø> (ø)

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[divdavem]

@quentinderoubaix Thank you for reviewing and merging my PR