SQS-406 | E2E Tests: Increase expected latency upper bound for /passt…

…hrough/active-orders enpoint ( backport ) (#517)

This PR Increases latency upper bound from 150ms to 450ms based on our
current observations via monitoring tools to make tests less noisy.

tests/test_passthrough.py

@@ -9,7 +9,7 @@
 from decimal import *
 
 # Arbitrary choice based on performance at the time of test writing
-EXPECTED_LATENCY_UPPER_BOUND_MS = 150
+EXPECTED_LATENCY_UPPER_BOUND_MS = 450
 
 user_balances_assets_category_name = "user-balances"
 unstaking_assets_category_name = "unstaking"