PushConnectionTest: Increase maxCommandBytes again

It was already increased in 61a943e, but that was still not enough to
take into account the length of snapshot versions.

Change-Id: Ib54cec97e97042fe274b87a3a1afa9bb06c8bf19
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/PushConnectionTest.java

@@ -184,7 +184,7 @@ public class PushConnectionTest {
 			updates.put(rru.getRemoteName(), rru);
 		}
 
-		server.getConfig().setInt("receive", null, "maxCommandBytes", 180);
+		server.getConfig().setInt("receive", null, "maxCommandBytes", 190);
 		try (Transport tn = testProtocol.open(uri, client, "server");
 				PushConnection connection = tn.openPush()) {
 			try {