In the light of extending our eKMS support it will be helpful
to have a tighter use of the word "KMS".
KMS should refer to the actual component that manages keys.
The keyservice, also called KMS in the constellation code,
does not manage keys itself. It talks to a KMS backend,
which in turn does the actual key management.
* Fix license integration test
* Fix build tags in lint config
* Fix missing error checks
* Fix use of MarkNodeAsInitialized
* Fix attestation tests
* Add license integration test to cmake list
* Move file watcher and validator to internal
* Add aTLS endpoint to KMS for Kubernetes external requests
* Update Go version in Dockerfiles
* Move most KMS packages to internal
Signed-off-by: Daniel Weiße <dw@edgeless.systems>