mingit: Add arm64 version, update homepage & checkver

[SorYoshino]

Summary

Refines mingit manifest, improving maintainability, license information, and autoupdate logic.

Changes

• Add arm64 architecture support.
• Update description to a more formal and professional style.
• Correcte homepage URL to the official Git for Windows site.
• Enhance license field with SPDX identifier and URL.
• Replace bin field with env_add_path for cmd directory to simplify PATH handling.
• Update checkver to use GitHub API with JSONPath and regex for MinGit assets.

Notes

• Add the entire cmd directory to PATH ensures all MinGit utilities are available without manually enumerating binaries.

Testing

The test results are as follows:

┏[ D:\Software\Scoop\Local\apps\scoop\current\bin][ master ≡]
└─> .\checkver.ps1 -App mingit -Dir 'D:\Temporary\Software\Microsoft\Windows Sandbox\Repositories\Scoop\Buckets\Main\bucket' -f
mingit: 2.52.0 (scoop version is 2.52.0)
Forcing autoupdate!
Autoupdating mingit
DEBUG[1766759317] $substitutions (hashtable) -> D:\Software\Scoop\Local\apps\scoop\current\lib\autoupdate.ps1:221:5
DEBUG[1766759317] $substitutions.$dotVersion                    2.52.0
DEBUG[1766759317] $substitutions.$match1                        2.52.0
DEBUG[1766759317] $substitutions.$basenameNoExt                 MinGit-2.52.0-arm64
DEBUG[1766759317] $substitutions.$urlNoExt                      https://github.com/git-for-windows/git/releases/download/v2.52.0.windows.1/MinGit-2.52.0-arm64
DEBUG[1766759317] $substitutions.$url                           https://github.com/git-for-windows/git/releases/download/v2.52.0.windows.1/MinGit-2.52.0-arm64.zip
DEBUG[1766759317] $substitutions.$patchVersion                  0
DEBUG[1766759317] $substitutions.$majorVersion                  2
DEBUG[1766759317] $substitutions.$version                       2.52.0
DEBUG[1766759317] $substitutions.$matchTag                      v2.52.0.windows.1
DEBUG[1766759317] $substitutions.$minorVersion                  52
DEBUG[1766759317] $substitutions.$baseurl                       https://github.com/git-for-windows/git/releases/download/v2.52.0.windows.1
DEBUG[1766759317] $substitutions.$matchHead                     2.52.0
DEBUG[1766759317] $substitutions.$matchTail
DEBUG[1766759317] $substitutions.$preReleaseVersion             2.52.0
DEBUG[1766759317] $substitutions.$dashVersion                   2-52-0
DEBUG[1766759317] $substitutions.$cleanVersion                  2520
DEBUG[1766759317] $substitutions.$buildVersion
DEBUG[1766759317] $substitutions.$underscoreVersion             2_52_0
DEBUG[1766759317] $substitutions.$basename                      MinGit-2.52.0-arm64.zip
DEBUG[1766759317] $hashfile_url = https://github.com/git-for-windows/git/releases/tag/v2.52.0.windows.1 -> D:\Software\Scoop\Local\apps\scoop\current\lib\autoupdate.ps1:224:5
Searching hash for MinGit-2.52.0-arm64.zip in https://github.com/git-for-windows/git/releases/tag/v2.52.0.windows.1
DEBUG[1766759317] $regex = (?s)MinGit-2\.52\.0-arm64\.zip.*?([a-fA-F0-9]{64}) -> D:\Software\Scoop\Local\apps\scoop\current\lib\autoupdate.ps1:78:9
Found: fea97618f69b41ecb63953e3c650e9087cac3f9d215925346daebef0c4d6f7f8 using Extract Mode
Writing updated mingit manifest

• Use conventional PR title: <manifest-name[@version]|chore>: <general summary of the pull request>
• I have read the Contributing Guide

[github-actions]

All changes look good.

Wait for review from human collaborators.

mingit

• Lint
• Description
• License
• Hashes
• Checkver
• Autoupdate
• Autoupdate Hash Extraction

Check the full log for details.

[SorYoshino]

/verify

[github-actions]

All changes look good.

Wait for review from human collaborators.

mingit

• Lint
• Description
• License
• Hashes
• Checkver
• Autoupdate
• Autoupdate Hash Extraction

Check the full log for details.