[BUG] SubmodelElementRepository: Integer Value For Property Can't Be Used For Patching

[geso02]

Describe the bug

My submodel repository contains a submodel with one property. I now try to patch the property using the value-only representation. The property representation could be a number, string or boolean value according to the OpenApi-Definition. The property value is of type integer, so I expect that I could post an integer value, but only posting a string value works.

To Reproduce Steps to reproduce the behavior:

1. Set up a submodel repository.
2. Post the submodel:

   curl -X POST http://localhost:8081/submodels -H "Content-Type: application/json" -v -d '{
   "modelType": "Submodel",
   "kind": "Instance",
   "id": "http://sm.twinficient.de/TechnicalData/heater-definition/Optima_Plus_40",
   "idShort": "TechnicalData-heater-definition/Optima_Plus_40",
   "submodelElements": [{
           "modelType": "Property",
           "value": "12",
           "valueType": "xs:integer",
           "idShort": "prop"
       }
   ]
   }'

3. Perform a patch:

   curl -X PATCH http://localhost:8081/submodels/aHR0cDovL3NtLnR3aW5maWNpZW50LmRlL1RlY2huaWNhbERhdGEvaGVhdGVyLWRlZmluaXRpb24vT3B0aW1hX1BsdXNfNDA=/submodel-elements/prop/\$value \
   -H "Content-Type: application/json" \
   -d '18'

4. Status Code is 500, so check out the error on server-side:

   org.eclipse.digitaltwin.basyx.deserialization.exception.SubmodelElementValueDeserializationException: The provided SubmodelElementValue JSON is not as defined in the Dot AAS Part 2
   at org.eclipse.digitaltwin.basyx.deserialization.factory.SubmodelElementValueDeserializationFactory.create(SubmodelElementValueDeserializationFactory.java:99) ~[basyx.submodelservice-core-2.0.0-milestone-03.1.jar!/:2.0.0-milestone-03.1]
   at org.eclipse.digitaltwin.basyx.deserialization.SubmodelElementValueJsonDeserializer.deserialize(SubmodelElementValueJsonDeserializer.java:56) ~[basyx.submodelservice-core-2.0.0-milestone-03.1.jar!/:2.0.0-milestone-03.1]
   at org.eclipse.digitaltwin.basyx.deserialization.SubmodelElementValueJsonDeserializer.deserialize(SubmodelElementValueJsonDeserializer.java:46) ~[basyx.submodelservice-core-2.0.0-milestone-03.1.jar!/:2.0.0-milestone-03.1]
   at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:342) ~[jackson-databind-2.17.2.jar!/:2.17.2]

   Expected behavior

Should work for integer as it does for string (Jackson deserialization problem)

BaSyx (please complete the following information):

• BaSyx Version [ v2.0]
• BaSyx SDK [Java]
• AAS Version [ DotAAS V3]

System (please complete the following information):

• OS: Windows
• CPU architecture: x86

[aaronzi]

Thank you for reporting this. This seems like a duplicate of #384 but we will check this again to verify