SIGSEGV in skale_stats

[dimalit]

IS-256 HACK do_register() in stats::element only in stop(), to avoid race condition with queue

[github-actions]

SUGGESTIONS BEFORE MERGE:

1. Build custom container here: https://github.com/skalenetwork/skaled/actions?query=workflow%3A%22Custom+Docker+and+Binary%22
2. Test it here: https://github.com/skalenetwork/skale-ci-integration_tests/actions?query=workflow%3A%22Skaled+Nightly+Tests%22
3. Edit VERSION file appropriately to your changes!
   See https://skalelabs.atlassian.net/wiki/spaces/SKALE/pages/2444951553/Branching+instructions

[codecov]

Codecov Report

Merging #1635 (ff4781e) into develop (268cd9f) will decrease coverage by 1.46%.
The diff coverage is 100.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1635      +/-   ##
===========================================
- Coverage    44.52%   43.06%   -1.46%     
===========================================
  Files          340      340              
  Lines        51248    51248              
===========================================
- Hits         22817    22071     -746     
- Misses       28431    29177     +746