udp: fix flaky tests

[Danielius1922]

No description provided.

[codecov-commenter]

Codecov Report

Merging #290 (e1014a3) into master (073d2c2) will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #290      +/-   ##
==========================================
+ Coverage   63.67%   63.70%   +0.03%     
==========================================
  Files          76       76              
  Lines        5756     5756              
==========================================
+ Hits         3665     3667       +2     
+ Misses       1703     1701       -2     
  Partials      388      388              

Impacted Files	Coverage Δ
udp/client/clientobserve.go	72.72% <0.00%> (+1.01%)	⬆️
net/conn.go	85.93% <0.00%> (+1.56%)	⬆️

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[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication