Update for js-sdk interface change (#12638)

It's a separate method to force a capabilities fetch as of
matrix-org/matrix-js-sdk#4246

src/components/views/dialogs/devtools/ServerInfo.tsx

@@ -55,7 +55,7 @@ export async function getServerVersionFromFederationApi(client: MatrixClient): P
 
 const ServerInfo: React.FC<IDevtoolsProps> = ({ onBack }) => {
     const cli = useContext(MatrixClientContext);
-    const capabilities = useAsyncMemo(() => cli.getCapabilities(true).catch(() => FAILED_TO_LOAD), [cli]);
+    const capabilities = useAsyncMemo(() => cli.fetchCapabilities().catch(() => FAILED_TO_LOAD), [cli]);
     const clientVersions = useAsyncMemo(() => cli.getVersions().catch(() => FAILED_TO_LOAD), [cli]);
     const serverVersions = useAsyncMemo(async (): Promise<IServerWellKnown | symbol> => {
         try {