Fix datarace

[Zensey]

Resolves: https://github.com/mysteriumnetwork/node/issues/6067

[codecov-commenter]

Codecov Report

:x: Patch coverage is 16.66667% with 5 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 28.56%. Comparing base (3174272) to head (2e9421c). :warning: Report is 133 commits behind head on master.

Files with missing lines	Patch %	Lines
...s/wireguard/endpoint/netstack-provider/netstack.go	0.00%	2 Missing :warning:
ci/packages/generate.go	0.00%	1 Missing :warning:
ci/packages/package.go	0.00%	1 Missing :warning:
services/wireguard/endpoint/netstack/netstack.go	0.00%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6068      +/-   ##
==========================================
- Coverage   37.92%   28.56%   -9.37%     
==========================================
  Files         371      520     +149     
  Lines       20715    29961    +9246     
==========================================
+ Hits         7856     8558     +702     
- Misses      12075    20585    +8510     
- Partials      784      818      +34     

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[stale[bot]]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.