Update Prusa MMU3

[classicrocker883]

Description

Basically, since this was originally MMU2 stuff, I've updated to the correct MMU3 stuff

• The old .yaml file no worky. - src\feature\mmu3\mmu_hw\check-pce.sh
• Added a new error code that wasnt there before
• Updated error MSG_ | TITLE_, and DESC_ - language_en.h

Note

Originally, this code was taken from prusa3d/Prusa-Firmware/tree/MK3/Firmware/mmu2 + files included from the previous Firmware directory, updated last by #26635 as to work with MMU3.
However, this repo has support for MMU2S
The two share a common firmware - in their Releases, one asset is MMU2S_MMU3_FW3.0.3+896.hex
and from the README file:

# Prusa-Firmware-MMU
The currently supported models are:

- Original Prusa MMU3
- Original Prusa MMU2S

Maybe @eoyilmaz or @thinkyhead or someone else can review this,
but perhaps HAS_PRUSA_MMU2S is closer related to HAS_PRUSA_MMU3 - I mean according to @prusa3d thats what it seems like

---

Furthermore

I am unsure of a few things, such as the ButtonOperations
According to prusa3d/Prusa-Error-Codes, there has been some removed from enum class ButtonOperations in button_operations.h . Things like Skip was added, and MoreInfo removed. So I'm not so sure how to deal with this in the remaining files. I left MoreInfo, because some things do use it, I just dont know how or if it (still) works for the printer/MMU side, or was meant only for MMU2
Also, in the updated mmu-error-codes.yaml, it seems button options like Tune and such were dropped so I'm wondering how that works on the Prusa's side.

Requirements

• MarlinUI
• Prusa MMU3

Benefits

• Update/fix non-working URL
• Add/rename error codes to work with updated MMU3 firmware

Configurations

Related Issues

Just wanted to point this out

not sure if this needs change, but
apparently a couple things have been declared but are unused:

• two_choices
• button_op_middle

Marlin\src\feature\mmu3\mmu3_reporting.cpp: In function 'void MMU3::ReportErrorHookStaticRender(uint8_t)':
Marlin\src\feature\mmu3\mmu3_reporting.cpp:299:12: warning: variable 'two_choices' set but not used [-Wunused-but-set-variable]
       bool two_choices = false;
            ^~~~~~~~~~~
Marlin\src\feature\mmu3\mmu3_reporting.cpp:304:21: warning: unused variable 'button_op_middle' [-Wunused-variable]
                     button_op_middle = BUTTON_OP_MIDDLE(button_operation);
                     ^~~~~~~~~~~~~~~~