[Bug] JMC and jdk.jfr models of RecordingState differ

[andrewazores]

cryostat-core/src/main/java/io/cryostat/core/serialization/SerializableRecordingDescriptor.java

Line 70 in e77984d

RecordingState.valueOf(recording.getState().name()),

There is a latent bug here: these two RecordingState types from the JMC type hierarchy and from jdk.jfr.Recording use two different enums with differently named enum member values to represent states a Flight Recording may be in. Using a simple name-based valueOf() call is unsafe since the names do not match 1:1, nor is one set a subset of the other.