[libcalamares] Fix typo in API

- "asynchronouse" is not a thing

src/libcalamares/network/Manager.cpp

@@ -276,7 +276,7 @@ Manager::synchronousGet( const QUrl& url, const RequestOptions& options )
 }
 
 QNetworkReply*
-Manager::asynchronouseGet( const QUrl& url, const CalamaresUtils::Network::RequestOptions& options )
+Manager::asynchronousGet( const QUrl& url, const CalamaresUtils::Network::RequestOptions& options )
 {
     return asynchronousRun( d->nam(), url, options );
 }

src/libcalamares/network/Manager.h

@@ -146,7 +146,7 @@ public:
      * This may be a nullptr if an error occurs immediately.
      * The caller is responsible for cleaning up the reply (eventually).
      */
-    QNetworkReply* asynchronouseGet( const QUrl& url, const RequestOptions& options = RequestOptions() );
+    QNetworkReply* asynchronousGet( const QUrl& url, const RequestOptions& options = RequestOptions() );
 
 private:
     class Private;

src/modules/netinstall/NetInstallPage.cpp

@@ -187,7 +187,7 @@ NetInstallPage::loadGroupList( const QString& confUrl )
     using namespace CalamaresUtils::Network;
 
     cDebug() << "NetInstall loading groups from" << confUrl;
-    QNetworkReply* reply = Manager::instance().asynchronouseGet(
+    QNetworkReply* reply = Manager::instance().asynchronousGet(
         QUrl( confUrl ),
         RequestOptions( RequestOptions::FakeUserAgent | RequestOptions::FollowRedirect, std::chrono::seconds( 30 ) ) );