chore(main): release 9.1.0

[github-actions]

🤖 I have created a release beep boop

9.1.0 (2026-01-08)

Continuous integration

• codeql: check cjs, mjs, and ts files (#728) (54f106c)
• deps: bump actions/checkout from 5 to 6 (#736) (e5790ea)
• deps: bump actions/dependency-review-action from 4.8.1 to 4.8.2 (#738) (d6898ab)
• deps: bump coverallsapp/github-action from 2.3.6 to 2.3.7 (#737) (6db1617)

Dependencies

• deps-dev: bump @eslint/compat in the eslint group (#734) (a250df1)
• deps-dev: bump @types/node from 24.10.4 to 25.0.3 (#740) (fb953a1)
• deps-dev: bump glob from 11.1.0 to 13.0.0 (#735) (a95455f)

Features

• add AbortSignal support to all pdf* functions (#742) (58853a0)

Improvements

• index: freeze #acceptedOptions object (#739) (ba5f382)
• index: freeze ERROR_MSGS object (#729) (bb9be92)
• index: use execBinary for attach, separate, unite, and html (#733) (4abae6a)

Miscellaneous

• .devcontainer: remove prepare script call (#730) (10bba99)
• tidy dotfiles, remove redundant deps (#726) (c2f8f23)

Tests

• index: cover spawn errors (#732) (4194504)

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[github-actions]

🤖 Created releases:

• v9.1.0

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