test: improve test-stream-duplex-readable-end

• Remove unneeded listener for the 'error' event.
• Use common.mustCall().
• Verify that the src stream gets paused.

Refs: https://github.com/nodejs/node/pull/35941

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• commit message follows commit guidelines