GRR Client Crashes "Serialized message too large"

**Environment**
- The GRR is installed on a VM running on ESXi on-prem. The VM runs Ubuntu 18.04 and GRR was installed from DEB (using the official documentation)
- GRR Version is 3.4.6.0
- Ubuntu 18.04
- Windows 10

**Describe the issue**
When I do the Memory Dump of All processes except GRR it works fine for some time, but at some point in time I get this message:

CRITICAL:2022-05-30 11:50:07,252 fleetspeak_client:117] Fatal error occurred:
Traceback (most recent call last):
File "site-packages\grr_response_client\fleetspeak_client.py", line 111, in _RunInLoop
File "site-packages\grr_response_client\fleetspeak_client.py", line 209, in _SendOp
File "site-packages\grr_response_client\fleetspeak_client.py", line 176, in _SendMessages
File "site-packages\fleetspeak\client_connector\connector.py", line 144, in Send
File "site-packages\fleetspeak\client_connector\connector.py", line 154, in _SendImpl
ValueError: Serialized message too large, size must be at most 2097152, got 2323650

So it doesn't like the message size. Now, the question, where this limit can be increased?