fix!: Remove caching of services from container

[Bl00D4NGEL]

While using the container facade in the HasPolicies trait of the user-policy-bundle I noticed that the facade would return a cached instance of the PolicyRegistry which included a stale(?) reference to a ManagerRegistry while running our integration tests. This seems to have been caused by the cached dependencies of the Facade class.

In order to fix this there were two approaches to this:

1. Remove the caching of dependencies
2. Add a function to check whether a facade class is cachable

Option 1 could have backwards compatibility breaking and implicit while Option 2 is more explicit and definitely keeps BC.

After talking and fiddling around with @janvt we came to the conclusion that it makes sense to get rid of the caching and instead only check for "swapped instances".

This change should result in a major version bump as a few methods are removed and the caching behaviour could've been interpreted as intended behaviour instead.

[janvt]

Updated title so rls-pls knows to do a v2.