increase-timeout (#580)

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## Purpose

## Tests

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- [x] The purpose of the PR, such as "Fix some issue (link existing
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Signed-off-by: Helen Zhao <shanjiaz@a100-07.nemg-001.lab.rdu2.dc.redhat.com>
Co-authored-by: Helen Zhao <shanjiaz@a100-07.nemg-001.lab.rdu2.dc.redhat.com>

Author: shanjiaz

tests/e2e/utils.py

@@ -34,7 +34,7 @@
 
 def wait_for_server(
     port: int,
-    timeout: float = 180.0,
+    timeout: float = 600.0,
     poll_interval: float = 2.0,
     process: subprocess.Popen | None = None,
 ):