[Telemetry] Increase sharding timeout to 2.5 hours from 2 hours.

tools/perf/core/perf_data_generator_unittest.py

Index: tools/perf/core/perf_data_generator_unittest.py
diff --git a/tools/perf/core/perf_data_generator_unittest.py b/tools/perf/core/perf_data_generator_unittest.py
index c428c08fe9ea74ae399513eda89b4afaa2c710b6..b67811714a6ace31540b86105426a3cad3ccb037 100644
--- a/tools/perf/core/perf_data_generator_unittest.py
+++ b/tools/perf/core/perf_data_generator_unittest.py
@@ -89,7 +89,7 @@ class PerfDataGeneratorTest(unittest.TestCase):
         'swarming': {
           'ignore_task_failure': False,
           'dimension_sets': [{'os': 'SkyNet', 'id': 'T-850', 'pool': 'T-RIP'}],
-          'hard_timeout': 7200,
+          'hard_timeout': 9000,
           'can_use_on_swarming_builders': True,
           'expiration': 36000,
           'io_timeout': 3600,
@@ -111,7 +111,7 @@ class PerfDataGeneratorTest(unittest.TestCase):
         'swarming': {
           'ignore_task_failure': True,
           'dimension_sets': [{'os': 'SkyNet', 'id': 'T-850', 'pool': 'T-RIP'}],
-          'hard_timeout': 7200,
+          'hard_timeout': 9000,
           'can_use_on_swarming_builders': True,
           'expiration': 36000,
           'io_timeout': 3600,