Update issue URL

[AlekSi]

Description

The old issue was a duplicate.

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 #3021 (0348bc4) into main (d50e794) will increase coverage by 2.94%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3021      +/-   ##
==========================================
+ Coverage   71.24%   74.18%   +2.94%     
==========================================
  Files         385      385              
  Lines       21042    21045       +3     
==========================================
+ Hits        14991    15613     +622     
+ Misses       5117     4480     -637     
- Partials      934      952      +18     

Impacted Files	Coverage Δ
internal/handlers/pg/msg_find.go	87.32% <100.00%> (+2.21%)	⬆️
internal/handlers/sqlite/msg_find.go	92.39% <100.00%> (+0.16%)	⬆️

... and 58 files with indirect coverage changes

Flag	Coverage Δ
hana	?
integration	70.56% <100.00%> (+2.97%)	⬆️
mongodb	5.34% <0.00%> (-0.01%)	⬇️
pg	60.68% <50.00%> (+2.21%)	⬆️
shard-1	55.21% <100.00%> (+<0.01%)	⬆️
shard-2	36.43% <50.00%> (-13.05%)	⬇️
shard-3	56.70% <100.00%> (+20.26%)	⬆️
sqlite	45.86% <50.00%> (+3.96%)	⬆️
unit	24.26% <0.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

[rumyantseva]