feat(discovery): add generated ID to ServiceRefs

[andrewazores]

Related to #1046
Related to #520
Related to #939
Depends on cryostatio/cryostat-web#501
Depends on #1047

[github-actions]

This PR/issue depends on:

• feat(targets): target select component can be expanded to reveal details cryostat-web#501
• cryostatio/cryostat#1047
  By Dependent Issues (🤖). Happy coding!

[andrewazores]

[ERROR] Failures:
[ERROR]   CustomTargetsIT.targetShouldAppearInListing:175
Expected: iterable with items [<{"connectUrl":"service:jmx:rmi:///jndi/rmi://cryostat-itests:9091/jmxrmi","annotations":{"cryostat":{"JAVA_MAIN":"io.cryostat.Cryostat","PORT":"9091","HOST":"cryostat-itests","REALM":"JDP"},"platform":{}},"alias":"io.cryostat.Cryostat","labels":{}}>, <{"connectUrl":"localhost:0","annotations":{"cryostat":{"REALM":"Custom Targets"},"platform":{}},"alias":"self","labels":{}}>] in any order
     but: not matched: <{"id":"bb9df24f-74c2-46cc-9da9-68f87e8e8e76","connectUrl":"localhost:0","alias":"self","labels":{},"annotations":{"platform":{},"cryostat":{"REALM":"Custom Targets"}}}>
[ERROR]   CustomTargetsIT.targetShouldNoLongerAppearInListing:264
Expected: iterable containing [<{"connectUrl":"service:jmx:rmi:///jndi/rmi://cryostat-itests:9091/jmxrmi","annotations":{"cryostat":{"JAVA_MAIN":"io.cryostat.Cryostat","PORT":"9091","HOST":"cryostat-itests","REALM":"JDP"},"platform":{}},"alias":"io.cryostat.Cryostat","labels":{}}>]
     but: item 0: was <{"id":"17a2b8a9-e479-473b-a4c4-372bb2d40241","connectUrl":"service:jmx:rmi:///jndi/rmi://cryostat-itests:9091/jmxrmi","alias":"io.cryostat.Cryostat","labels":{},"annotations":{"platform":{},"cryostat":{"HOST":"cryostat-itests","PORT":"9091","JAVA_MAIN":"io.cryostat.Cryostat","REALM":"JDP"}}}>
[INFO]
[ERROR] Tests run: 143, Failures: 2, Errors: 0, Skipped: 1

CustomTargetsIT just needs updating to expect a random UUID ID in those responses.

[andrewazores]

Obsolete, replaced by #1089