NIFI-15513 Added unit tests for property migration of processors and controller services in extended bundles e-g, snowflake, social-media, splunk, update-attribute, websocket, windows-event-log, workday and zendesk.

[dan-s1]

Summary

NIFI-15513
in addition to the added unit tests, an effort was made to reduce the number of warnings in the unit tests changed by making the changes Intellij suggested.

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[exceptionfactory]

Thanks for the additional tests and cleanup @dan-s1! +1 merging