fix(profiling): Always use builtin time.sleep (#1869)

As pointed out in #1813 (comment),
gevent patches the `time` module and `time.sleep` will only release the GIL if
there no other greenlets ready to run. This ensures that we always use the
builtin `time.sleep` and not the patched version provided by `gevent`.

sentry_sdk/profiler.py

@@ -109,24 +109,24 @@
     )
 
 
-try:
-    from gevent.monkey import is_module_patched  # type: ignore
-except ImportError:
-
-    def is_module_patched(*args, **kwargs):
-        # type: (*Any, **Any) -> bool
-        # unable to import from gevent means no modules have been patched
-        return False
-
-
 try:
     from gevent import get_hub as get_gevent_hub  # type: ignore
+    from gevent.monkey import get_original, is_module_patched  # type: ignore
+
+    thread_sleep = get_original("time", "sleep")
 except ImportError:
 
     def get_gevent_hub():
         # type: () -> Any
         return None
 
+    thread_sleep = time.sleep
+
+    def is_module_patched(*args, **kwargs):
+        # type: (*Any, **Any) -> bool
+        # unable to import from gevent means no modules have been patched
+        return False
+
 
 def is_gevent():
     # type: () -> bool
@@ -797,7 +797,7 @@ def run(self):
             # not sleep for too long
             elapsed = time.perf_counter() - last
             if elapsed < self.interval:
-                time.sleep(self.interval - elapsed)
+                thread_sleep(self.interval - elapsed)
 
             # after sleeping, make sure to take the current
             # timestamp so we can use it next iteration
@@ -859,7 +859,7 @@ def run(self):
             # not sleep for too long
             elapsed = time.perf_counter() - last
             if elapsed < self.interval:
-                time.sleep(self.interval - elapsed)
+                thread_sleep(self.interval - elapsed)
 
             # after sleeping, make sure to take the current
             # timestamp so we can use it next iteration