Unskip test that passes now

[AlekSi]

Description

All TLS parameters are now a part of URI.

Closes #1759.

Readiness checklist

• I added/updated unit tests.
• I added/updated integration/compatibility tests.
• I added/updated comments and checked rendering.
• I made spot refactorings.
• I updated user documentation.
• I ran task all, and it passed.
• I ensured that PR title is good enough for the changelog.
• (for maintainers only) I set Reviewers (@FerretDB/core), Labels, Project and project's Sprint fields.
• I marked all done items in this checklist.

[codecov]

Codecov Report

Merging #2885 (6642206) into main (72df2bc) will increase coverage by 0.06%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2885      +/-   ##
==========================================
+ Coverage   63.48%   63.55%   +0.06%     
==========================================
  Files         451      451              
  Lines       23511    23512       +1     
==========================================
+ Hits        14926    14943      +17     
+ Misses       7619     7603      -16     
  Partials      966      966              

Impacted Files	Coverage Δ
...ernal/handlers/common/aggregations/stages/group.go	88.60% <100.00%> (+0.07%)	⬆️

... and 3 files with indirect coverage changes

Flag	Coverage Δ
integration	56.79% <100.00%> (+0.11%)	⬆️
mongodb	4.20% <0.00%> (+0.05%)	⬆️
pg	56.71% <100.00%> (+0.11%)	⬆️
shard-1	40.96% <100.00%> (+0.11%)	⬆️
shard-2	41.58% <100.00%> (+<0.01%)	⬆️
shard-3	45.19% <100.00%> (-0.01%)	⬇️
unit	24.34% <0.00%> (-0.01%)	⬇️

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[rumyantseva]

LGTM