Implement simple query pushdown for Tigris

[AlekSi]

Description

This PR closes #897.

Only _id with ObjectID and string values for now.

Readiness checklist

• I added tests for new functionality or bugfixes.
• I ran task all, and it passed.
• I added/updated comments for both exported and unexported top-level declarations (functions, types, etc).
• I checked comments rendering with task godocs.
• (for maintainers only) I set Reviewers (@FerretDB/core), Assignee, Labels, Project and project's Sprint fields.
• I marked all done items in this checklist.

[codecov]

Codecov Report

Merging #1091 (627fddd) into main (84c5a89) will increase coverage by 0.08%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1091      +/-   ##
==========================================
+ Coverage   65.81%   65.90%   +0.08%     
==========================================
  Files         248      248              
  Lines       11853    11875      +22     
==========================================
+ Hits         7801     7826      +25     
+ Misses       3187     3182       -5     
- Partials      865      867       +2     

Impacted Files	Coverage Δ
integration/shareddata/shareddata.go	83.07% <100.00%> (+0.26%)	⬆️
internal/handlers/tigris/msg_delete.go	69.13% <100.00%> (ø)
internal/handlers/tigris/msg_find.go	55.26% <100.00%> (+0.79%)	⬆️
internal/handlers/tigris/tigrisdb/query.go	78.94% <100.00%> (+10.52%)	⬆️
internal/util/version/version.go	55.00% <0.00%> (-5.00%)	⬇️
internal/handlers/common/filter.go	85.38% <0.00%> (ø)
internal/handlers/pg/pgdb/settings.go	44.18% <0.00%> (+4.65%)	⬆️

Flag	Coverage Δ
integration	62.11% <100.00%> (+0.09%)	⬆️
mongodb	15.20% <4.00%> (-3.24%)	⬇️
pg	52.64% <4.00%> (-11.11%)	⬇️
tigris	32.16% <100.00%> (+0.14%)	⬆️
unit	24.47% <0.00%> (-0.13%)	⬇️

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[w84thesun]

Overall looks good, just a small suggestion for the queryDocumentsFilter method.

[w84thesun]

LGTM

[rumyantseva]

I guess you checked (maybe manually) that we really go to the database :)

LGTM overall.