Increase wait time threshold for Crate instance startup

Increased the wait time threshold from 30 to 60 seconds before raising an error.

Author: surister

src/crate/testing/layer.py

@@ -387,7 +387,7 @@ def _wait_for(self, validator):
                 self.stop()
                 raise e
 
-            if wait_time > 30:
+            if wait_time > 60:
                 for line in line_buf.lines:
                     log.error(line)
                 self.stop()