fix(tests/profiling): use a string with setenv, not a int (#1321)

Author: jd

tests/profiling/test_accuracy.py

@@ -71,7 +71,7 @@ def total_time(time_data, funcname):
 @pytest.mark.skipif(TESTING_GEVENT, reason="Test not compatible with gevent")
 def test_accuracy(monkeypatch):
     # Set this to 100 so we don't sleep too often and mess with the precision.
-    monkeypatch.setenv("DD_PROFILING_MAX_TIME_USAGE_PCT", 100)
+    monkeypatch.setenv("DD_PROFILING_MAX_TIME_USAGE_PCT", "100")
     p = profiler.Profiler()
     p.start()
     spend_16()