Switch from lib/pq to jackc/pgx/stdlib

[rowanseymour]

No description provided.

[Copilot]

Pull Request Overview

This PR switches the PostgreSQL driver from lib/pq to jackc/pgx/stdlib for improved performance and features. The change involves updating imports, dependency declarations, and database connection strings.

• Replace lib/pq driver with jackc/pgx/v5/stdlib
• Update database connection driver name from "postgres" to "pgx"
• Add new pgx dependencies and remove old pq imports

Reviewed Changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 1 comment.

File	Description
runtime/runtime.go	Adds pgx driver import
go.mod	Updates dependencies to include pgx and related packages
cmd/rp-archiver/main.go	Removes pq import and changes driver name to "pgx"
archives/archives_test.go	Removes pq import and changes driver name to "pgx" in tests

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[Copilot]

The lib/pq dependency should be removed since the code is switching to pgx. Keeping the old dependency may cause confusion and increases the binary size unnecessarily.

Suggested change

github.com/lib/pq v1.10.9