upgrade depencencies

Merge pull request #715 from upper/pgx-v5

upgrade to pgx/v5

Merge pull request #714 from upper/v4

merge-back into master

cockroachdb: fix tests with DELETE and LIMIT (#701) (#702)

Merge pull request #653 from upper/refactor-memory-and-speed-optimiza…

…tions

Memory and speed optimizations

Merge pull request #653 from upper/refactor-memory-and-speed-optimiza…

…tions

Memory and speed optimizations

Merge pull request #652 from upper/with-context

Refactor WithContext to make it work without cloning the session and add `ConnMaxIdleTime`

Merge pull request #656 from upper/allow-select-from-db-result

allow using db.Result as subquery

Merge pull request #649 from upper/refactor-memory-and-speed-optimiza…

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optimize `prepareQueryForDisplay`

Release v4.5.0