Run build-nextjs for Turbopack test runs on metal machines instead of GitHub hosted runner

[timneutkens]

What?

All the test runs that happen after this workflow runs are running on our self hosted runners but the initial setup is running on GitHub's runner, this causes an environment mismatch that seems to be causing these errors:

  ⚠ Error: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.39' not found (required by /root/actions-runner/_work/next.js/next.js/packages/next-swc/native/next-swc.linux-x64-gnu.node)
      at mod.require (packages/next/dist/server/require-hook.js:65:28)
      at loadNative (packages/next/dist/build/swc/index.js:853:69)
      at <unknown> (packages/next/dist/build/swc/index.js:264:28)
      at new Promise (<anonymous>)
      at loadBindings (packages/next/dist/build/swc/index.js:232:23) {
    code: 'ERR_DLOPEN_FAILED'
  }

Going to land this to verify it remedies the problem.

[timneutkens]

• Run build-nextjs for Turbopack test runs on metal machines instead of GitHub hosted runner #75654 👈 (View in Graphite)
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[ijjk]

Failing test suites

Commit: b243b32

pnpm test test/integration/amp-export-validation/test/index.test.js

• AMP Validation on Export > production mode > should have shown errors during build

Expand output

● AMP Validation on Export › production mode › should have shown errors during build

expect(received).toMatch(expected)

Expected pattern: /error.*The mandatory attribute 'height' is missing in tag 'amp-video'\./
Received string:  "   Loading config from /root/actions-runner/_work/next.js/next.js/test/integration/amp-export-validation/next.config.js
   Loading config from /root/actions-runner/_work/next.js/next.js/test/integration/amp-export-validation/next.config.js
   ▲ Next.js 15.2.0-canary.39·
   Checking validity of types ...
   Creating an optimized production build ...
   Loading config from /root/actions-runner/_work/next.js/next.js/test/integration/amp-export-validation/next.config.js
   Loading config from /root/actions-runner/_work/next.js/next.js/test/integration/amp-export-validation/next.config.js
   Loading config from /root/actions-runner/_work/next.js/next.js/test/integration/amp-export-validation/next.config.js
 ✓ Compiled successfully
   Collecting page data ...
   Generating static pages (0/8) ...
   Generating static pages (2/8)··
 ⚠ Linting is disabled.
Error occurred prerendering page \"/second\". Read more: https://nextjs.org/docs/messages/prerender-error
AssertionError: Assertion failed: WebAssembly is uninitialized

  at new module$contents$goog$asserts_AssertionError (../evalmachine.<anonymous>:106:1695)
  at module$contents$goog$asserts_doAssertFailure (../evalmachine.<anonymous>:107:354)
  at goog.asserts.assertExists (../evalmachine.<anonymous>:109:142)
  at Object.module$contents$amp$validator_validateString [as validateString] (../evalmachine.<anonymous>:2663:108)
  at Validator.validateString (../packages/next/dist/compiled/amphtml-validator/index.js:1:20650)
  at validateAmp (../packages/next/dist/export/routes/pages.js:87:34)
  at async exportPagesPage (../packages/next/dist/export/routes/pages.js:104:13)
  at async Span.traceAsyncFn (../packages/next/dist/trace/trace.js:156:20)
  at async exportPage (../packages/next/dist/export/worker.js:352:18)
  Export encountered an error on /second, exiting the build.
   ⨯ Static worker exited with code: 1 and signal: null
  "
  at Object.toMatch (integration/amp-export-validation/test/index.test.js:28:29)

Read more about building and testing Next.js in contributing.md.