[BUG] `Z_MAX_POS` for Monoprice 18360 / Wanhao i3 2.1 is too small

### Did you test the latest `bugfix-2.1.x` code?

Yes, and the problem still exists.

### Bug Description

https://github.com/MarlinFirmware/Configurations/blob/146bf274ca87ad81b31db3153ee3eb855c6099ee/config/examples/Wanhao/Duplicator%20i3%202.1/Configuration.h#L1962-L1962

`Z_MAX_POS` is hardcoded as 150, but the printer in question has max build z height of 180!

### Bug Timeline

_No response_

### Expected behavior

_No response_

### Actual behavior

_No response_

### Steps to Reproduce

_No response_

### Version of Marlin Firmware

2.1.2.7

### Printer model

Monoprice 18360 (clone of Wanhao Duplicator i3)

### Electronics

_No response_

### LCD/Controller

_No response_

### Other add-ons

_No response_

### Bed Leveling

None

### Your Slicer

None

### Host Software

None

### Don't forget to include

- [x] A ZIP file containing your `Configuration.h` and `Configuration_adv.h`.

### Additional information & file uploads

_No response_

The issue points to Configuration.h at line 1962; start there and compare the Z_MAX_POS setting with the reported Monoprice 18360/Wanhao i3 2.1 build height. Done means correcting this model configuration and checking the resulting diff.

Written by the indexing model from the issue text.