Reduce number of tries before failing PYTHON-431 test

Author: A. Jesse Jiryu Davis

test/high_availability/test_ha.py

@@ -764,7 +764,7 @@ def test_pinning(self):
  # Now verify changing the tag_sets unpins the member.
  tags0 = [{'a': 'a'}, {}]
  tags1 = [{'a': 'x'}, {}]
- for _ in range(10000):
+ for _ in range(1000):
  host = utils.read_from_which_host(c, NEAREST, tags0)
  new_host = utils.read_from_which_host(c, NEAREST, tags1)
  if host != new_host:
@@ -776,7 +776,7 @@ def test_pinning(self):
 
  # Finally, verify changing the secondary_acceptable_latency_ms unpins
  # the member.
- for _ in range(10000):
+ for _ in range(1000):
  host = utils.read_from_which_host(c, SECONDARY, None, 15)
  new_host = utils.read_from_which_host(c, SECONDARY, None, 20)
  if host != new_host: