Using generic Map to avoid Gson 2.15.0 change from LinkedTreeMap to java.util.LinkedHashMap to break existing apps

Signed-off-by: daniele-verducci <daniele.verducci@nextcloud.com>

Author: daniele-verducci

lib/src/main/java/com/nextcloud/android/sso/api/AidlNetworkRequest.java

@@ -35,7 +35,7 @@
 import java.io.ObjectOutputStream;
 import java.io.Serializable;
 import java.util.ArrayList;
-import java.util.LinkedHashMap;
+import java.util.Map;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 import androidx.annotation.NonNull;
@@ -264,8 +264,8 @@ static ExceptionResponse deserializeObjectV2(InputStream is) throws IOException,
             final ArrayList<?> list = new Gson().fromJson(headers, ArrayList.class);
 
             for (Object o : list) {
-                final LinkedHashMap<?, ?> hashMap = (LinkedHashMap<?, ?>) o;
-                headerList.add(new PlainHeader((String) hashMap.get("name"), (String) hashMap.get("value")));
+                final Map<?, ?> header = (Map<?, ?>) o;
+                headerList.add(new PlainHeader((String) header.get("name"), (String) header.get("value")));
             }
         }