backstage release v2.93.1

Fixed

• (agent-platform) Name why an installation’s sessions are unreadable in #2828 by @teemow
• (chart) Connect to the CNPG database with TLS against its CA in #2829 by @teemow

Full Changelog: https://github.com/giantswarm/backstage/compare/v2.93.0...v2.93.1