Do not send frames when attempting to perform controller recovery

[AlCalzone]

This should not happen:

... missed Send Data callback
2024-06-19T00:42:09.983Z SERIAL » 0x01030016ea                                                         (5 bytes)
2024-06-19T00:42:09.983Z DRIVER » [REQ] [SendDataAbort]
2024-06-19T00:42:09.985Z SERIAL « [ACK]                                                                   (0x06)
2024-06-19T00:42:19.987Z SERIAL » 0x010f00a9000100e00100250000000064f8                                (17 bytes)
2024-06-19T00:42:19.988Z DRIVER » [Node 224] [REQ] [SendDataBridge]
                                  │ source node id:   1
                                  │ transmit options: 0x25
                                  │ callback id:      100
                                  └─[NoOperationCC]
2024-06-19T00:42:19.990Z CNTRLR   The controller is unresponsive
2024-06-19T00:42:19.990Z DRIVER   Controller missed Send Data callback. Attempting to recover...
2024-06-19T00:42:19.990Z CNTRLR   Performing soft reset...

[AlCalzone]

Not sure how this happened though, can't reproduce in tests.