Update printer-sovol-sv06-plus-2023.cfg

[errantelectron]

Added verify_heater configuration for heat bed, as Klipper's default setting for this will otherwise lead to print-aborting "verify_heater" errors due to the SV06+ bed being slightly slower to gain heat than the rate that Klipper expects by default

The default expects a minimum bed heat increase of 2°C per minute which the SV06+ doesn't always manage, especially if any heat adjustment is made during a print while the extruder is demanding more current - attempting to go from 100°C to 110° during a polycarbonate print for example is likely to cause a print failure

This config change reduces the enforced minimum rate of heat bed temperature increase to 1°C per minute, preventing "verify_heater" errors due to slow heat gain

[JamesH1978]

Thank you for submitting a PR, please refer to point 3 in "What to expect in a review" in https://github.com/Klipper3d/klipper/blob/master/docs/CONTRIBUTING.md and provide a signed off by line.

Thanks James

[errantelectron]

My apologies James, but I prefer not to publicly dox my GitHub account.

I will close the request now that I am aware pseudonymous contributions to Klipper are not permitted.

Thanks