Temporary change to test why GitHub Actions is getting 404's when it …

…is expecting 200's, by changing one of the two locations that returns 404 into a 204. Will revert soon.

src/main/java/net/jonathangiles/tools/teenyhttpd/TeenyHttpd.java

@@ -272,7 +272,7 @@ private void handleIncomingRequest(final Socket clientSocket) {
                 }
                 response = route.get().getValue().apply(request);
             } else {
-                response = StatusCode.NOT_FOUND.asResponse();
+                response = StatusCode.NO_CONTENT.asResponse();
             }
 
             sendResponse(clientSocket, response);