fix: #10618 Using incorrect @multipart instead of @FormParam in microprofile java client

[BUG][JAVA] Using incorrect @multipart instead of @FormParam when generated Microprofile java client #10618
#10618

Author: jochenr

modules/openapi-generator/src/main/resources/Java/libraries/microprofile/api.mustache

@@ -13,7 +13,7 @@ import {{rootJavaEEPackage}}.ws.rs.*;
 import {{rootJavaEEPackage}}.ws.rs.core.Response;
 import {{rootJavaEEPackage}}.ws.rs.core.MediaType;
 {{^disableMultipart}}
-import org.apache.cxf.jaxrs.ext.multipart.*;
+// import org.apache.cxf.jaxrs.ext.multipart.*;
 {{/disableMultipart}}
 {{#microprofileMutiny}}
 import io.smallrye.mutiny.Uni;
@@ -27,6 +27,7 @@ import {{rootJavaEEPackage}}.validation.Valid;
 import org.eclipse.microprofile.rest.client.annotation.RegisterProvider;
 import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;
 
+
 {{#appName}}
 /**
  * {{{appName}}}

modules/openapi-generator/src/main/resources/Java/libraries/microprofile/formParams.mustache

@@ -1 +1 @@
-{{#isFormParam}}{{^isFile}}@Multipart(value = "{{baseName}}"{{^required}}, required = false{{/required}})  {{{dataType}}} {{paramName}}{{/isFile}}{{#isFile}} @Multipart(value = "{{baseName}}" {{^required}}, required = false{{/required}}) Attachment {{paramName}}Detail{{/isFile}}{{/isFormParam}}
+{{#isFormParam}}{{^isFile}}{{#required}}{{#useBeanValidation}}@NotNull {{/useBeanValidation}}{{/required}}@FormParam("{{baseName}}")  {{{dataType}}} {{paramName}}{{/isFile}}{{#isFile}} {{#required}}{{#useBeanValidation}}@NotNull {{/useBeanValidation}}{{/required}}@FormParam("{{baseName}}") Attachment {{paramName}}Detail{{/isFile}}{{/isFormParam}}