renovate: update undici to v7

[schaable]

• v7 removes the throwOnError request option and the maxRedirections dispatcher option, so both are replaced with the responseError and redirect interceptors.
• The responseError interceptor throws a generic "Response Error" message. We replace it with Response status code <code>: <reason> to preserve the error messages currently exposed to consumers.
• Tests now pass the mock agent directly as the dispatcher instead of composing the interceptor onto a mock pool, which hangs silently in v7.

Closes #8561

[changeset-bot]

🦋 Changeset detected

Latest commit: b54b6b6

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@nomicfoundation/hardhat-utils	Minor

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	undici@​7.29.0

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[github-actions]

hardhat

Total size of the bundle: 38M
Total number of dependencies (including transitive): 37

List of dependencies (sorted by size)

30M	total
7.3M	@sentry/core
5.2M	zod
2.7M	micro-eth-signer
2.2M	undici
1.9M	@noble/curves
1.3M	@nomicfoundation/hardhat-utils
1.2M	@noble/hashes
884K	@nomicfoundation/hardhat-vendored
864K	@streamparser/json
692K	tsx
656K	@nomicfoundation/hardhat-errors
624K	micro-packed
492K	@scure/bip39
408K	json-stream-stringify
368K	ethereum-cryptography
332K	@streamparser/json-node
320K	enquirer
320K	@nomicfoundation/hardhat-zod-utils
292K	semver
204K	ws
204K	adm-zip
168K	esbuild
168K	@scure/base
152K	@nomicfoundation/edr
136K	fast-equals
100K	chokidar
96K	@scure/bip32
72K	@nomicfoundation/solidity-analyzer
56K	rfdc
48K	ansi-colors
44K	resolve.exports
44K	readdirp
36K	p-map
24K	strip-ansi
24K	is-safe-filename
24K	env-paths
24K	ansi-regex

[Copilot]

Pull request overview

Updates Hardhat’s request utilities and related tests to be compatible with undici v7, replacing removed throwOnError/maxRedirections options with the responseError and redirect interceptors while preserving the error messaging that consumers rely on.

Changes:

• Bump undici to ^7.29.0 (lockfile + @nomicfoundation/hardhat-utils dependency) and add a changeset for the hardhat-utils release.
• Update the request utility to compose redirect + responseError interceptors and restore actionable status-code error messages.
• Refactor multiple test suites to pass the MockAgent as the dispatcher (keeping intercept declaration separate), and add/adjust tests for redirects and error causes.

Reviewed changes

Copilot reviewed 14 out of 15 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pnpm-lock.yaml	Locks undici to v7.29.0 across the workspace.
packages/hardhat/test/utils.ts	Updates test dispatcher helper to return both interceptable + dispatcher (MockAgent).
packages/hardhat/test/internal/cli/banner-manager.ts	Passes MockAgent as testDispatcher instead of the interceptable.
packages/hardhat/test/internal/builtin-plugins/network-manager/http-provider.ts	Uses { interceptor, dispatcher } and passes the dispatcher to HttpProvider.
packages/hardhat-verify/test/verification.ts	Uses ETHERSCAN_API_URL constant and passes the dispatcher through to verification flows.
packages/hardhat-verify/test/utils.ts	Exposes dispatcher alongside interceptable for undici v7-compatible mocking.
packages/hardhat-verify/test/sourcify.ts	Passes the dispatcher (MockAgent) into Sourcify instead of the interceptable.
packages/hardhat-verify/test/etherscan.ts	Passes the dispatcher (MockAgent) into Etherscan instead of the interceptable.
packages/hardhat-verify/test/blockscout.ts	Passes the dispatcher (MockAgent) into Blockscout instead of the interceptable.
packages/hardhat-utils/test/request.ts	Updates expectations for removed undici options; adds redirect + error-cause coverage for v7 behavior.
packages/hardhat-utils/test/helpers/request.ts	Returns { interceptor, dispatcher } from the test helper for v7-safe usage.
packages/hardhat-utils/src/internal/request.ts	Composes redirect + responseError interceptors and restores status-code error messages.
packages/hardhat-utils/package.json	Bumps undici dependency to ^7.29.0.
packages/hardhat-slang-solx/test/downloader.ts	Updates downloader tests to pass MockAgent as dispatcher and keep intercept setup separate.
.changeset/quiet-donkeys-tickle.md	Declares a minor release for @nomicfoundation/hardhat-utils due to the undici update.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file

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[Copilot]

Pull request overview

Copilot reviewed 14 out of 15 changed files in this pull request and generated 1 comment.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file

[Copilot]

Pull request overview

Copilot reviewed 14 out of 15 changed files in this pull request and generated no new comments.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file

Suppressed comments (1)

Previously missed (1) — in code that hasn't changed since the last review.

.changeset/quiet-donkeys-tickle.md:5

• This changeset note doesn’t mention that undici v7 now requires Node.js >=20.18.1 (see pnpm-lock.yaml:7169). That’s a consumer-visible constraint change, so it should be called out in the release notes (and potentially affects whether a minor bump is sufficient).

Updated undici to v7.

[Copilot]

Pull request overview

Copilot reviewed 14 out of 15 changed files in this pull request and generated no new comments.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file