Merge branch 'master' into maciejk/ar-missing-releases

# Conflicts:
#	.evergreen-functions.yml
#	.evergreen-release.yml
#	scripts/dev/contexts/evg-private-context
#	scripts/dev/contexts/root-context

Author: MaciejKaras

docker/mongodb-kubernetes-tests/kubetester/mongodb.py

@@ -89,6 +89,11 @@ def assert_reaches_phase(self, phase: Phase, msg_regexp=None, timeout=None, igno
             "Failed to enable Authentication",
             # Sometimes agents need longer to register with OM.
             "some agents failed to register or the Operator",
+            # Kubernetes API server may timeout during high load, but the request may still complete.
+            # This is particularly common when deploying many resources simultaneously.
+            "but may still be processing the request",
+            "Client.Timeout exceeded while awaiting headers",
+            "context deadline exceeded",
         )
 
         start_time = time.time()