.github/workflows: Migrate workflows to Blacksmith runners

[useblacksmith-dev]

To whomever may be reviewing this PR,

Blacksmith is the fastest way to run your GitHub Actions.

What does this PR change?

This PR has been automatically generated by a team member in your GitHub organization using Blacksmith's Migration Wizard, or MigWiz for short. This PR changes the following:

1. Your selected workflows will now run on Blacksmith's 2x faster hardware (e.g., runs-on: blacksmith-4vcpu-ubuntu-2204). Learn more about the different instances available to choose from.
2. Your jobs running on Blacksmith will now have all official GitHub and popular third-party cache actions automatically interact with our 4x faster, colocated cache. Learn more about Blacksmith's actions cache.
3. Your GitHub Actions will now actually be observable. Learn more about Blacksmith's logging and other observability features.
4. Your Docker builds will now automatically share their Docker layer cache, resulting in up to 40x faster builds. Learn more about Blacksmith's Docker layer caching.

FAQ

• Is this free? The first 3,000 minutes per month are free.
• Who uses Blacksmith? Clerk, Ashby, VEED, and 600+ others.
• What's the catch? There is none. Merge this thing already.

---

^{Codesmith can help with this PR — just tag @codesmith or enable autofix.}

• Autofix CI and bot reviews

---

^{Codesmith can help with this PR — just tag @codesmith or enable autofix.}

• Autofix CI and bot reviews (Staging)

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 8567b6f. Configure here.}

[cursor]

Artifact name mismatch breaks verify and delete jobs

High Severity

The upload job's runs-on matrix update for Windows changed the artifact name. The verify and delete jobs still reference the old Windows artifact name, causing the verify job to fail and the delete job to attempt deleting a nonexistent artifact.

 

^{Reviewed by Cursor Bugbot for commit 8567b6f. Configure here.}

[blacksmith-sh]

Found 15 test failures on Blacksmith runners:

All test failures in the http-client package assert that the echoed URL from postman-echo.com starts with "http://" but receive "https://", indicating the HTTP client now enforces HTTPS for these requests. This change is not connected to the PR migrating workflows to Blacksmith runners, as the failures occur in local test runs where the client behavior has been altered to use secure connections by default.

Failures

Test	View Logs
auth/does basic http get request with pat token auth
	View Logs
auth/does basic http get request with pat token auth
	View Logs
packages/http-client/tests/auth.test.ts/ does basic http get request with basic auth
	View Logs
packages/http-client/tests/auth.test.ts/ does basic http get request with pat token auth
	View Logs
packages/http-client/tests/basics.test.ts/does basic http get request
	View Logs
packages/http-client/tests/basics.test.ts/ does basic http get request with default headers
	View Logs
packages/http-client/tests/basics.test.ts/ does basic http get request with merged headers
	View Logs
packages/http-client/tests/basics.test.ts/ does basic http get request with no user agent
	View Logs
packages/http-client/tests/basics.test.ts/does basic http patch request
	View Logs
packages/http-client/tests/basics.test.ts/does basic http post request
	View Logs
packages/http-client/tests/keepalive.test.ts/ does basic http get request with keepAlive true
	View Logs
packages/http-client/tests/keepalive.test.ts/ does basic http patch request with keepAlive true
	View Logs
packages/http-client/tests/keepalive.test.ts/ does basic http post request with keepAlive true
	View Logs
packages/http-client/tests/proxy.test.ts/ HttpClient does basic http get request through proxy
	View Logs
packages/http-client/tests/proxy.test.ts/ HttpClient does basic http get request when bypass proxy
	View Logs