chore: release 2.19.0

[github-actions]

🤖 I have created a release beep boop

2.19.0 (2026-08-13)

Features

• *sum: treat uppercase variant of *sums as checksum file (941f472)
• awless: add 3rd-party fallback completion loader (c70b75b)
• aws: add 3rd-party fallback completion loader (1522dac)
• curl: add more option arg (non-)completions (ee74f36)
• dockerfmt: add fallback 3rd party completion loader (0f9e255)
• flutter: add 3rd-party fallback completion loader (ad988d0)
• go: add 3rd-party fallback completion loader (9030f99)
• herdr: add 3rd-party fallback completion loader (4097523)
• pandoc: add fallback 3rd party completion loader (dbfb252)
• pass-cli: add fallback 3rd party completion loader (e2848b1)
• pew: add 3rd-party fallback completion loader (906735d)
• pipx: add 3rd-party fallback completion loader (4ad8970)
• prek: add fallback 3rd party completion loader (23361e3)
• sudo: recognize --preserve-env taking an arg (a33deaa)
• taplo: add fallback 3rd party completion loader (a8f687e)
• topgrade: add fallback 3rd party completion loader (c285005)
• xh: add 3rd party fallback completion loader (f5c4c0d)
• zizmor: add fallback 3rd party completion loader (864ce41)

Bug Fixes

• avoid consuming stdin on remote scp/ssh/rsync completion wait (30f9da8)
• make: offer phony targets as-is instead of collapsing them (b29d4ea), closes #1219
• make: properly skip the "Not a target" block in the helper AWK (6bb9953)
• scp: use less remote filename escaping where supported (d6ad3ce)
• sudo: do not offer completions after --help/--version (35df24e)

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