Release v0.13.0

This release of Open VSX consists of:

• ovsx CLI
• openvsx-webui frontend library
• openvsx-server Docker image
• openvsx-webui Docker image

Deploying the server application is documented in the Wiki.

What's Changed

• Bump webui to 0.9.6 by @amvanbaren in #747
• Updated jOOQ classes by @amvanbaren in #748
• Add paging to query endpoints by @amvanbaren in #754
• Enforce implicit unique constraints in database by @amvanbaren in #756
• cleanup admin statistics endpoints by @amvanbaren in #757
• Upgrade to Java 17 by @amvanbaren in #759

Full Changelog: v0.12.0...v0.13.0