Minor style fixes (#69)

chore: update netty, grpc (#67)

* chore: update netty, grpc

* ci: upload artifact version

Default timeout interceptor (#66)

* chore: add default timeout interceptor

* refactor: remove unused slf4j

refactor: add copy constructor to request context (#65)

chore: upgrade grpc, netty (#64)

fix: restore netty constraint (#63)

chore: update protobuf, gradle version (#62)

* chore: update protobuf, slf4j versions

* chore: revert slf4j change

* chore: update plugins

chore: add external error interceptor (#61)

* chore: add external error interceptor

* fix: stray char

* refactor: make more extendable

chore: support initializing request id (#59)

* chore: support initializing request id

* ci: fix codecov

chore: update netty (#57)