Reduce bisectable timout

Given that this timeout is per each run, 200 is a bit too much.
Each bisect query should test about 12 commits, so with the previous
limit it meant that it would hang for half an hour.

Now it will hang for two minutes, but that's okay.

Author: AlexDaniel

bisectable.pl

@@ -34,7 +34,7 @@ package Bisectable;
 my $build_lock    = abs_path('./lock');
 
 sub timeout {
-  return 200;
+  return 10;
 }
 
 sub process_message {