Release checklist: v0.5.1

[github-actions]

This is a checklist to track the release of v0.5.1.

Core build (this repo):

• GitHub Release (add release notes and make public)
• New version released on crates.io
• Verify Android aar released on Maven Central
• Cocoapod released

SQLite + powersync bundles:

• wa-sqlite build: Update core extension to 0.5.1 wa-sqlite#75
• sql.js dev adapter: Update core extension, maintenance powersync-sql-js#26

User-facing SDK updates:

• powersync.dart (see instructions in this file): Update core extension powersync.dart#447
• powersync-js (directly update node, react-native and capacitor packages; upgrade dependencies on wa-sqlite and sql-js in packages and demos): Update core extension powersync-js#1049
• kotlin (update in libs.versions.toml): Update core extension powersync-kotlin#363
• swift (update in Package.swift): feat: Checkpoint Requests powersync-swift#153
• native (update in Cargo.toml): Update core extension to 0.5.1 powersync-native#17
• dotnet (update Tools/Setup/Setup.cs)