CI: Don't fail the esmeta job due to lack of support

[gibson042]

See #4623 (comment) and https://github.com/tc39/test262/actions/runs/18957730032/job/54138279811?pr=4623

Run echo 'New or modified test files:'
New or modified test files:
test/built-ins/ThrowTypeError/distinct-cross-realm.js
========================================
 extract phase
----------------------------------------
========================================
 compile phase
----------------------------------------
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 build-cfg phase
----------------------------------------
========================================
 test262-test phase
----------------------------------------
[NotSupported] feature/$262
Error: Process completed with exit code 123.

[ptomato]

@gibson042 can this be closed now that #4658 has landed?

[Ms2ger]

It's unclear to me whether the other PR solved the issue by implementing the relevant feature and not triggering the error message or by handling the error message without failing the job. That said, the code here looks somewhat brittle.

[gibson042]

I'm fine with relying upon the changes of es-meta/esmeta#319 .