fix(jans-config-api): OpenID Connect Client displayName update issue

[pujavs]

Describe the bug
Error when updating client displayName

com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize value of type java.lang.String from Object value (token JsonToken.START_OBJECT)
at [Source: (org.eclipse.jetty.server.HttpInput); line: 1, column: 320] (through reference chain: io.jans.as.common.model.registration.Client["clientName"])

To Reproduce
Steps to reproduce the behaviour:

1. Execute jans-cli -> /opt/jans/jans-cli/config-cli.py -use-test-client
2. Go to option 8(OAuth) -> 1(OpenID Connect - Clients) -> 6(Update modified properties of OpenId Connect client by Inum)
3. Key in inum and update displayName
4. See error
   com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize value of type java.lang.String from Object value (token JsonToken.START_OBJECT)
   at [Source: (org.eclipse.jetty.server.HttpInput); line: 1, column: 320] (through reference chain: io.jans.as.common.model.registration.Client["clientName"])

Expected behavior
Client displayName should be updated

Screenshots

Logs:

[devrimyatar]

@pujavs Still having issue:

21-09 15:16:55.753 DEBUG configapi.core.util.Jackson Jackson.java:53- Patch details - patchAsString:[{"op": "replace", "path": "/displayName", "value": "My Test Client"}], obj:DeletableEntity{expirationDate=null, deletable=false} BaseEntry [dn=inum=9abe8fc2-4efd-4312-b14b-1b8ef50e1c0e,ou=clients,o=jans]
2022-09-21 15:16:55.883:WARN :oejs.HttpChannel:qtp1793436274-17: handleException /jans-config-api/api/v1/openid/clients/9abe8fc2-4efd-4312-b14b-1b8ef50e1c0e com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize value of type `java.lang.String` from Object value (token `JsonToken.START_OBJECT`)| at [Source: UNKNOWN; byte offset: #UNKNOWN] (through reference chain: io.jans.as.common.model.registration.Client["clientName"])

[devrimyatar]

Working (MySQL backend)

vokoscreenNG-2023-01-20_13-40-53.mp4

[pujavs]

closing this issue as successfully tested by @devrimyatar