Fix. Request. Fallback to socket when cURL is unavailable

[AntonV1211]

https://app.doboard.com/1/task/55624

[codecov]

Codecov Report

❌ Patch coverage is 70.58824% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 29.31%. Comparing base (b0602ca) to head (833cefa).

Files with missing lines	Patch %	Lines
lib/Cleantalk/Common/HTTP/Request.php	75.00%	8 Missing ⚠️
lib/Cleantalk/ApbctWP/Variables/AltSessions.php	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                dev     #872      +/-   ##
============================================
+ Coverage     29.21%   29.31%   +0.10%     
- Complexity     6450     6466      +16     
============================================
  Files           287      287              
  Lines         26061    26085      +24     
============================================
+ Hits           7613     7647      +34     
+ Misses        18448    18438      -10     

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