Extend some timeouts in tests

[zhiltsov-max]

Motivation and context

Reduces changes of getting problems like these:
https://github.com/cvat-ai/cvat/actions/runs/12830112733/job/35777856334?pr=8943
https://github.com/cvat-ai/cvat/actions/runs/12830417963/job/35778560490?pr=8962

How has this been tested?

Checklist

• I submit my changes into the develop branch
• I have created a changelog fragment
• I have updated the documentation accordingly
• I have added tests to cover my changes
• I have linked related issues (see GitHub docs)

License

• I submit my code changes under the same MIT License that covers the project.
  Feel free to contact the maintainers if that's a concern.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.83%. Comparing base (8613254) to head (52069e3).
Report is 3 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #8963      +/-   ##
===========================================
- Coverage    73.88%   73.83%   -0.05%     
===========================================
  Files          416      417       +1     
  Lines        44421    44583     +162     
  Branches      3996     4028      +32     
===========================================
+ Hits         32820    32920     +100     
- Misses       11601    11663      +62     

Components	Coverage Δ
cvat-ui	78.28% <77.15%> (-0.14%)	⬇️
cvat-server	70.06% <ø> (ø)