Hot fix release to including
- Proper permission check of the classes implementing IPerunPlugin
- Fix the binding of double values in SvCore
- Add proper exception handling in SvServiceTracker
- Add better error handling in SvPerunManager
- Fix for upgrading the Postgres database to drop redundant workflow columns
- Sync of the version to v.3.0.6.4 to align with svarog-interfaces (codewise this is compatible to 3.0.6.1)