[Bug]: Connect with `pre-reset` fails for ST-Link probes using pyOCD

[TeoMahnic]

Description

Connection using the ST-Link probe with the pre-reset method fails in pyOCD because pyOCD attempts post_reset_recovery on a device that has not yet been successfully connected.

Steps to Reproduce

1. Connect target with on-board ST-Link probe
2. Select pre-reset connect mode in pyOCD using the command line option: -Oconnect_mode=pre-reset
3. Run pyocd gdbserver command
4. Observe error printed to the console

Expected Behavior

pre-reset connect mode works with ST-Link probe.

Additional Information

Current behaviour:

0000499 I Target device: STM32H743ZITx [cbuild_run]
0000522 I Target type is stm32h743zitx [board]
0000534 I Performing connect pre-reset [coresight_target]
0000735 C STLink error (66): Unknown command [__main__]