Changes provided by this MR.

CI: Build application server and run tests
CI: Explicit distributables phase dependencies Artifacts will be rendered even if other pipeline stages failed.
CI: Fix workflow triggers to prevent duplicate pipelines Pipelines were running for both MRs and branches. Disable MR pipelines in favor or branch pipelines to allow specifying push options such as -o ci.variable=CI_FORCE_RUN_ALL_STAGES=true and see the effect in the MR pipeline.
server/pom: Remove useless dependencies
srv/pom: Lock lombok version, remove optional dependency tag Lombok is required for both compile and execution.
srv/PlantService: Return empty collection if user has no plants Follow REST semantics.
srv/Controller: Only log unexpected RPC exceptions Prevents server log from being polluted by unnecessary error messages.
srv/PlantService: Custom exceptions to yield adequate JSONRPC error codes Follow JSONRPC semantics.
srv/SensorService: Custom exceptions to yield adequate JSONRPC error codes Follow JSONRPC semantics.
srv/UserService: Custom exceptions to yield adequate JSONRPC error codes Follow JSONRPC semantics.
srv/Tests: Adapt tests to custom RPC exceptions & fix broken tests Follow JSONRPC semantics, fix some tests which were failing.

Impact on existing components or the repository

Missing JSON-RPC specification for the server API. But this was already the case. (For example, see the sensor board JSONRPC API)

Edited May 13, 2021 by Roosemberth Palacios