ticket-1602 Fixed SNB refresh not working each 1 hour

[sergiy-skalelabs]

• Fixed SNB refresh not working each 1 hour on some nodes
• Implemented wait for init complete in parallel worker threads

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (6d81fa0) 85.79% compared to head (0b080ae) 85.79%.

❗ Current head 0b080ae differs from pull request most recent head 009fc97. Consider uploading reports for the commit 009fc97 to get more accurate results

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1606   +/-   ##
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  Coverage    85.79%   85.79%           
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  Files           26       26           
  Lines         1464     1464           
  Branches       401      401           
========================================
  Hits          1256     1256           
  Misses          33       33           
  Partials       175      175           

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