fix(tests): strip devEngines from temp package so changeset tests pass in CI

[JuroUhlar]

Jira: INTER-2305

• Strip pnpm-generated devEngines / packageManager metadata from the temp fixture package in initTestPackage before running pnpm install.

Fixes the changeset-based test suites, which broke the Release workflow with no relevant code change.

Why it broke

pnpm init now writes a devEngines.packageManager block into the generated package.json, and the following pnpm install chokes on it (Cannot use 'in' operator to search for 'integrity' in undefined). The block's shape depends on the pnpm version, which changed under us via a GitHub runner-image update — so this is environmental, not caused by the merged code. Stripping the metadata makes the fixture install predictably with whatever pnpm runs the tests.

Verification

Confirmed in CI on a throwaway branch: the nested pnpm install crashes with the block present and succeeds once it's removed.

[changeset-bot]

⚠️ No Changeset found

Latest commit: b542ee7

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[github-actions]

🚀 Following releases will be created using changesets from this PR:

@fingerprintjs/eslint-config-dx-team@3.0.0

Major Changes

• Move eslint and typescript-eslint to peer dependencies

  Under strict package managers (pnpm v10+), transitive dependencies are no longer exposed at the project root, which broke eslint bin resolution and import ... from 'typescript-eslint' in consuming projects. Declaring them as peers guarantees a single, project-controlled instance of each and avoids "multiple ESLint instances" errors.

  Breaking change: consumers must now install eslint and typescript-eslint themselves (plus typescript, which typescript-eslint requires as a peer):

  pnpm install -D eslint typescript-eslint typescript

  The redundant @typescript-eslint/eslint-plugin and @typescript-eslint/parser direct dependencies were also removed (they are provided by the typescript-eslint umbrella package). eslint-config-prettier, eslint-plugin-prettier, and globals remain bundled. (3832930)

[github-actions]

This PR will create a major release 🚀

⚠️ This is a test run of the release-notes-comment action that can be found in .github/workflows/analyze-commits.yml

2.0.0 (2026-07-13)

⚠ BREAKING CHANGES

• eslint-config: consumers must now install eslint and typescript-eslint.

Features

• eslint-config: move eslint and typescript-eslint to peer deps (3832930)

Bug Fixes

• tests: strip devEngines/packageManager from temp package before pnpm install (bffedfd)

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🔴	Statements	50%	3/6
🟢	Branches	100%	0/0
🔴	Functions	50%	1/2
🔴	Lines	25%	1/4

Test suite run success

15 tests passing in 7 suites.

Report generated by 🧪jest coverage report action from b542ee7

Show full coverage report

St	File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
🟡	All files	50	100	50	25
🟢	greeting.ts	100	100	100	100
🔴	index.ts	0	100	0	0	1-4

[Copilot]

Pull request overview

Updates the Changesets test helper to make CI test runs resilient to pnpm runner-image changes by removing pnpm-generated package-manager metadata from the temporary fixture package before installing dependencies.

Changes:

• Parse the temp package’s package.json with an extended type that tolerates devEngines / packageManager.
• Delete devEngines and packageManager from the generated package.json prior to pnpm install to avoid pnpm install failures triggered by newly-added metadata.

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[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.