Updated requirements.txt to match new requirements
Note: we have an issue with protobuf version incompatibilities between osgiservicebridge and etcd3
Fixed rsa_impl imports: initially used in type annotations only and therefore loaded with TYPE_CHECKING, they are now imported all the time as its types are used in cast() calls
Fixed a warning in a test infrastructure composition file
rsa_implimports: initially used in type annotations only and therefore loaded with TYPE_CHECKING, they are now imported all the time as its types are used incast()calls