chore(deps): update dependency sinon to v21.1.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
sinon (source)	21.0.1 → 21.1.0

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Release Notes

sinonjs/sinon (sinon)

v21.1.0

Compare Source

• 0a5526c5
  updated deps (Carl-Erik Kopseng)
• 5262204f
  fix: build artifacts before running bundled tests (Carl-Erik Kopseng)
• 819bb64b
  Migration to ECMAScript modules (ESM) (#​2683) (Carl-Erik Kopseng)

  This allowed us to finally consume ESM-only dependencies and has broken us free from some CJS shackes. Now produce the same API surface for CJS consumers, as well, by generating ./lib

  • Modern ignores 😁
  • test: add distribution harness
  • test: verify packed cjs and esm entrypoints
  • test: lock distribution api manifest
  • test: smoke test built pkg artifacts
  • docs: require contract tests for package migration
  • test: guard esm migration regressions
  • docs: require contract gate for esm migration
  • build: generate cjs lib from esm source entries
  • refactor: port root api surface to esm
  • build: clean port of root api to esm
  • docs: include implementation plans
  • fix: align lint and smoke tests with esm migration
  • refactor: complete esm port of all core components
  • refactor: finalize esm migration with sandbox and naming fixes
  • fix: finish esm migration stabilization
  • chore: stop tracking generated lib output
  • remove plans
  • prettier
  • linting
  • fix: make distribution tests self-contained
  • fix: build before coverage test bundle
  • refactor: move simple unit tests to src
  • refactor: flatten test and coverage script chains
  • refactor: use parallel mocha for node tests
  • test: restore fake timers cleanup
  • refactor: remove node test runner script
  • remove unneccessary clutter
  • fix: make mocha watch use polling
  • simplify
  • Increase coverage
  • Fix coverage by removing duplicated tests

  These were covering the generated lib/ folder.

  • Move shared util into esm dir
  • fix package dep issues
  • Adjust coverage
  • Upgrade all dependencies

  npx npm-check-updates -u

• cd2bf5a3
  Use newer endpoint (Carl-Erik Kopseng)

Released by Carl-Erik Kopseng on 2026-04-09.

v21.0.3

Compare Source

• 0494251b
  fix(#​2678): upgrade samsam to fix buffer comparisons (Carl-Erik Kopseng)

Released by Carl-Erik Kopseng on 2026-03-16.

v21.0.2

Compare Source

• 024321c4
  fix: skip Node specific tests in browser env (Carl-Erik Kopseng)
• b836fccb
  fix: js-yaml breaking change from v3 to v4 (Carl-Erik Kopseng)
• ebf0c431
  docs: add how-to article for stubbing ES module imports (#​1832) (#​2676) (Eduard Barrera)

  • docs: add how-to article for stubbing ES module imports with esm package

  Adds a comprehensive How-To guide that addresses issue #​1832, documenting
  how to configure Node.js to allow Sinon stubs to work with ES modules.

  • Explains why ES module namespace bindings are immutable by spec
  • Shows how to use the 'esm' npm package with mutableNamespace: true
  • Provides a complete working example with project layout, package.json,
    loader file, source modules, and a full test suite
  • Documents limitations (destructured imports, non-standard behavior)
  • Replaces the TODO comment in link-seams-commonjs.md with a cross-reference

  Closes #​1832
  Co-authored-by: Eduard Barrera eduardbar@users.noreply.github.com
  Co-authored-by: Carl-Erik Kopseng carlerik@gmail.com

• ebcd506c
  Fix spies not being reset properly (#​2673) (simon-id)
• 3beab2ba
  Make doc tests pass with new jQuery (Carl-Erik Kopseng)
• 766715c6
  build: reduce transitive audit findings (Carl-Erik Kopseng)
• 92aaf5c9
  build: upgrade eslint config and replace dependency-check (Carl-Erik Kopseng)
• c6aaa871
  chore: ignore project worktrees (Carl-Erik Kopseng)
• ef387e8e
  Upgrade most deps (Carl-Erik Kopseng)
• 3cf4e77d
  docs: improve writing of documentation (#​2675) (Eduardo de la Cruz Palacios)
• 6349032f
  Check login status before publishing steps are performed (Carl-Erik Kopseng)

Released by Carl-Erik Kopseng on 2026-03-04.

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