stream: prevent pipeline() callback after sync throw

[pacocartones]

Fixes: #65127

Summary

When pipeline() throws synchronously while wiring streams together — for
example, when a middle stage returns an invalid value (ERR_INVALID_RETURN_VALUE)
— the stages already wired have already incremented finishCount. When those
stages complete afterwards, their finish callbacks invoke the completion
callback with no error, double-reporting the failure that the caller
already received as a synchronous exception.

This change tracks synchronous throws while wiring, destroys the stages wired
so far, and skips the completion callback in that case.

Repro (issue case A)

const { pipeline, Readable, Transform } = require('node:stream');
const r = Readable.from(['a']);
const t = new Transform({ transform(c, e, cb) { cb(null, c); } });
try {
  pipeline(r, t, () => 42, (err) => console.log('callback:', err ?? 'NO ERROR'));
} catch (err) {
  console.log('threw:', err.code);
}

Before: threw: ERR_INVALID_RETURN_VALUE and callback: NO ERROR (double report).
After: threw: ERR_INVALID_RETURN_VALUE only; the callback is never invoked.

Verification

• Regression test added to test/parallel/test-stream-pipeline.js:
  • fails on the unfixed code (common.mustNotCall() gets invoked with success),
  • passes with the fix.
• Behavior of normal success, stream-error propagation, generator sources and
  abort paths verified unchanged against the pristine implementation.

Checklist

• tests and/or benchmarks are included
• commit message follows commit guidelines

[nodejs-github-bot]

Review requested:

• @nodejs/streams