feat(sql-schema-describer): support "DISTINCT ON" on CockroachDB

[jkomyno]

This PR:

• deprecates feat(qe): Add DistinctOn to crdb connector capabilities #4597
• closes https://github.com/prisma/team-orm/issues/777
• contributes to Support for SQL-level DISTINCT operation for PostgreSQL prisma#14765
• is a follow-up for impr(quaint/qe): PostgreSQL DISTINCT ON #4223.

[codspeed-hq]

CodSpeed Performance Report

Merging #5046 will not alter performance

_{Comparing feat/distinct-on-cockroachdb (320e2d6) with main (378004b)}

Summary

✅ 11 untouched benchmarks

[github-actions]

WASM Query Engine file Size

Engine	This PR	Base branch	Diff
Postgres	2.032MiB	2.032MiB	0.000B
Postgres (gzip)	816.877KiB	816.877KiB	0.000B
Mysql	1.995MiB	1.995MiB	0.000B
Mysql (gzip)	802.624KiB	802.624KiB	0.000B
Sqlite	1.895MiB	1.895MiB	0.000B
Sqlite (gzip)	763.270KiB	763.271KiB	-1.000B

[jkomyno]

DISTINCT ON + GROUP BY fails on JSONB columns due to cockroachdb/cockroach#35706, which was fixed for CockroachDB v23.2+. However, we're currently only testing CockroachDB until v23.1. We can't act on this task until we solve that.