Fix for supplied SSLSocketFactory being ignored

It was checking if the connection is an instance of ```HttpURLConnection```, but since ```HttpsURLConnection``` extends ```HttpURLConnection``` it's always true and the else is never executed. 

#820

Author: stefanlourens

msal4j-sdk/src/main/java/com/microsoft/aad/msal4j/DefaultHttpClient.java

@@ -90,16 +90,16 @@ HttpURLConnection openConnection(final URL finalURL)
         connection.setConnectTimeout(connectTimeout);
         connection.setReadTimeout(readTimeout);
 
-        if (connection instanceof HttpURLConnection) {
-            return (HttpURLConnection) connection;
-        } else {
+        if (connection instanceof HttpsURLConnection) {
             HttpsURLConnection httpsConnection = (HttpsURLConnection) connection;
 
             if (sslSocketFactory != null) {
                 httpsConnection.setSSLSocketFactory(sslSocketFactory);
             }
 
             return httpsConnection;
+        } else {
+            return (HttpURLConnection) connection;
         }
     }