Fix typos

Signed-off-by: Tran Ngoc Nhan <[email protected]>
Closes: gh-1286

Author: ngocnhan-tran1996

spring-graphql/src/test/java/org/springframework/graphql/server/webmvc/GraphQlRequestPredicatesTests.java

@@ -189,7 +189,7 @@ void shouldRejectRequestWithDifferentPath() {
 		}
 
 		@Test
-		void shouldRejectRequestWithIncmopatibleContentType() {
+		void shouldRejectRequestWithIncompatibleContentType() {
 			MockHttpServletRequest request = createMatchingSseRequest();
 			request.setContentType("text/xml");
 			ServerRequest serverRequest = ServerRequest.create(request, Collections.emptyList());