Updated Restreactive test with schemamapping

Author: denvitaharen

client/integration-tests/type-mapping/src/test/java/io/quarkiverse/openapi/generator/it/type/mapping/TypeAndImportMappingRestEasyReactiveTest.java

@@ -58,8 +58,8 @@ public void canMapTypesAndImportToDifferentValues() {
         typeMappingServer.verify(postRequestedFor(urlEqualTo("/type-mapping"))
                 .withRequestBodyPart(new MultipartValuePatternBuilder()
                         .withName("yearMonth")
-                        .withHeader(ContentTypeHeader.KEY, equalTo(MediaType.APPLICATION_JSON + "; charset=UTF-8"))
-                        .withBody(equalTo(testYearMonth.toString())).build()));
+                        .withHeader(ContentTypeHeader.KEY, equalTo(MediaType.APPLICATION_JSON))
+                        .withBody(equalTo("\"2024-06\"")).build()));
 
         typeMappingServer.verify(postRequestedFor(urlEqualTo("/type-mapping"))
                 .withRequestBodyPart(new MultipartValuePatternBuilder()