Description

Closes #{issue_number}.

At the moment subcomponent operator -> is used and it uses quoted string '"64fe76829d57c1b7ded6b5de"'

sqlite> SELECT _ferretdb_sjson FROM 'chi_f5858a65' WHERE _ferretdb_sjson -> '$._id' = '"64fe76829d57c1b7ded6b5de"';
{"$s":{"p":{"_id":{"t":"objectId"},"v":{"t":"int"}},"$k":["_id","v"]},"_id":"64fe76829d57c1b7ded6b5de","v":1}

We want to replace it with subcomponent operator ->> so we can use without quoted string '64fe76829d57c1b7ded6b5de'.

sqlite> SELECT _ferretdb_sjson FROM 'chi_f5858a65' WHERE _ferretdb_sjson ->> '$._id' = '64fe76829d57c1b7ded6b5de';
{"$s":{"p":{"_id":{"t":"objectId"},"v":{"t":"int"}},"$k":["_id","v"]},"_id":"64fe76829d57c1b7ded6b5de","v":1}

Readiness checklist

• I added/updated unit tests (and they pass).
• I added/updated integration/compatibility tests (and they pass).
• 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), Milestone (Next), Labels, Project and project's Sprint fields.
• I marked all done items in this checklist.