Fix ne recipes and add ARCH input variable

[homebysix]

This PR adjusts the ne download to support the new filename pattern, which is suffixed with either Intel or AppleSilicon.

Verbose recipe run with default (Intel) architecture:

% autopkg run -vvq 'ne/ne.download.recipe'
Processing ne/ne.download.recipe...
WARNING: ne/ne.download.recipe is missing trust info and FAIL_RECIPES_WITHOUT_TRUST_INFO is not set. Proceeding...
URLTextSearcher
{'Input': {'re_pattern': '(?P<url>[^"]+-(?P<version>[0-9\\.]+)-Intel\\.dmg)',
           'url': 'http://ne.di.unimi.it'}}
URLTextSearcher: No value supplied for result_output_var_name, setting default value of: match
URLTextSearcher: Found matching text (url): ne-3.3.3-Intel.dmg
URLTextSearcher: Found matching text (version): 3.3.3
URLTextSearcher: Found matching text (match): ne-3.3.3-Intel.dmg
{'Output': {'match': 'ne-3.3.3-Intel.dmg',
            'url': 'ne-3.3.3-Intel.dmg',
            'version': '3.3.3'}}
URLDownloader
{'Input': {'filename': 'ne.dmg',
           'url': 'http://ne.di.unimi.it/ne-3.3.3-Intel.dmg'}}
URLDownloader: No value supplied for prefetch_filename, setting default value of: False
URLDownloader: No value supplied for CHECK_FILESIZE_ONLY, setting default value of: False
URLDownloader: Storing new Last-Modified header: Fri, 20 Oct 2023 05:45:42 GMT
URLDownloader: Storing new ETag header: "fb9ca-6081f62173a08"
URLDownloader: Downloaded ~/Library/AutoPkg/Cache/com.github.jleggat.ne.download/downloads/ne.dmg
{'Output': {'download_changed': True,
            'etag': '"fb9ca-6081f62173a08"',
            'last_modified': 'Fri, 20 Oct 2023 05:45:42 GMT',
            'pathname': '~/Library/AutoPkg/Cache/com.github.jleggat.ne.download/downloads/ne.dmg',
            'url_downloader_summary_result': {'data': {'download_path': '~/Library/AutoPkg/Cache/com.github.jleggat.ne.download/downloads/ne.dmg'},
                                              'summary_text': 'The following '
                                                              'new items were '
                                                              'downloaded:'}}}
EndOfCheckPhase
{'Input': {}}
{'Output': {}}
Receipt written to ~/Library/AutoPkg/Cache/com.github.jleggat.ne.download/receipts/ne.download-receipt-20241226-195621.plist

The following new items were downloaded:
    Download Path
    -------------
    ~/Library/AutoPkg/Cache/com.github.jleggat.ne.download/downloads/ne.dmg

Verbose recipe run with Apple Silicon architecture:

% autopkg run -vvq 'ne/ne.download.recipe' -k ARCH=AppleSilicon
Processing ne/ne.download.recipe...
WARNING: ne/ne.download.recipe is missing trust info and FAIL_RECIPES_WITHOUT_TRUST_INFO is not set. Proceeding...
URLTextSearcher
{'Input': {'re_pattern': '(?P<url>[^"]+-(?P<version>[0-9\\.]+)-AppleSilicon\\.dmg)',
           'url': 'http://ne.di.unimi.it'}}
URLTextSearcher: No value supplied for result_output_var_name, setting default value of: match
URLTextSearcher: Found matching text (url): ne-3.3.3-AppleSilicon.dmg
URLTextSearcher: Found matching text (version): 3.3.3
URLTextSearcher: Found matching text (match): ne-3.3.3-AppleSilicon.dmg
{'Output': {'match': 'ne-3.3.3-AppleSilicon.dmg',
            'url': 'ne-3.3.3-AppleSilicon.dmg',
            'version': '3.3.3'}}
URLDownloader
{'Input': {'filename': 'ne.dmg',
           'url': 'http://ne.di.unimi.it/ne-3.3.3-AppleSilicon.dmg'}}
URLDownloader: No value supplied for prefetch_filename, setting default value of: False
URLDownloader: No value supplied for CHECK_FILESIZE_ONLY, setting default value of: False
URLDownloader: Storing new Last-Modified header: Fri, 20 Oct 2023 04:47:25 GMT
URLDownloader: Storing new ETag header: "fb424-6081e91a3eaf7"
URLDownloader: Downloaded ~/Library/AutoPkg/Cache/com.github.jleggat.ne.download/downloads/ne.dmg
{'Output': {'download_changed': True,
            'etag': '"fb424-6081e91a3eaf7"',
            'last_modified': 'Fri, 20 Oct 2023 04:47:25 GMT',
            'pathname': '~/Library/AutoPkg/Cache/com.github.jleggat.ne.download/downloads/ne.dmg',
            'url_downloader_summary_result': {'data': {'download_path': '~/Library/AutoPkg/Cache/com.github.jleggat.ne.download/downloads/ne.dmg'},
                                              'summary_text': 'The following '
                                                              'new items were '
                                                              'downloaded:'}}}
EndOfCheckPhase
{'Input': {}}
{'Output': {}}
Receipt written to ~/Library/AutoPkg/Cache/com.github.jleggat.ne.download/receipts/ne.download-receipt-20241226-195634.plist

The following new items were downloaded:
    Download Path
    -------------
    ~/Library/AutoPkg/Cache/com.github.jleggat.ne.download/downloads/ne.dmg