3.5.4a2

What's Changed

• fix: include the installer's error output in the failure reply by @goldyfruit in #979
• feat(fallback): ovos.skills.fallback.list, so a client can see what has no phrases by @goldyfruit in #951
• feat: load newly installed plugin skills as soon as the installer reports completion by @goldyfruit in #977
• revert: drop ovos.skills.fallback.list; the fallback registry is not served on the bus by @openvoiceos-bot in #988

Full Changelog: 3.5.4a1...3.5.4a2