[Fix] Remove Path Parameters from JSON body (#344)

## Changes
Remove Path Parameters from HTTP request body.
This is not correct and causes an issue with UC Volumes, which is not
expecting this parameter to be part of the body in Updates.


## Tests
Added unit test
Run integration tests

.codegen/model.java.tmpl

@@ -5,6 +5,7 @@ package com.databricks.sdk.service.{{.Package.Name}};
 import java.util.Map;
 import java.io.InputStream;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import java.util.Collection;
 import java.util.Objects;
@@ -30,7 +31,7 @@ public class {{.PascalName}} {
  /**
  {{.Comment " * " 80}}
  */
- {{if .IsJson}}@JsonProperty("{{.Name}}"){{end}}{{if .IsQuery}}@QueryParam("{{.Name}}"){{end}}{{if .IsHeader}}@Header("{{.Name}}"){{end}}
+ {{if .IsJson}}@JsonProperty("{{.Name}}"){{else}}@JsonIgnore{{end}}{{if .IsQuery}}@QueryParam("{{.Name}}"){{end}}{{if .IsHeader}}@Header("{{.Name}}"){{end}}
  private {{template "type" .Entity }} {{.CamelName}}{{if .IsNameReserved}}Value{{end}};
  {{end}}