v4.161.0

Note that this version is broken because it does not configure required HHVM correctly. Use 4.161.1 instead.

What's Changed

• Make "builtinLinters": "all" mean all linters, but... by @lexidor in #450
• Migrate away from d and v array by @lexidor in #457
• Add UnusedPipeVariableLinter by @ryangreenberg in #459
• Support ext watchman by @lexidor in #447
• Add Github Actions to update schema by @Atry in #462
• Update schema by @github-actions in #463

Full Changelog: v4.158.3...v4.161.0