HH-46994 improve logging configuration
HH-46994 clean some configs and docs
Merge remote-tracking branch 'origin/HH-46994' into EXP-12555
release 2.21.11 [an.sumin@hh.ru]
Merge remote-tracking branch 'origin/HH-46659' into EXP-12606
release 2.21.12 [an.sumin@hh.ru]
HH-46704 remove fetch_request and fetch_request_wrapper
HH-46704 fix example config and setup.py
HH-47330 add error_callback kwarg to HTTP client methods
HH-47330 add xsl syntax error test