fix(stream): read from sync iterables

[andrewtdiz]

Summary

• materialize sync iterator-protocol inputs for Readable.from() after string/Buffer single-chunk handling
• bail out of sync materialization when next() returns a Promise so async iterables stay on the existing async path
• remove stale known-failure entries for sync generator/custom iterable Readable.from() cases

Verification

• ./run_parity_tests.sh --suite node-suite --module stream --filter node-suite/stream/readable/from-async-iterable (expected residual; old empty-output shape, no runaway chunks)
• ./run_parity_tests.sh --suite node-suite --module stream --filter node-suite/stream/readable/from-gen
• ./run_parity_tests.sh --suite node-suite --module stream --filter node-suite/stream/readable/from-iterable-object
• ./run_parity_tests.sh --suite node-suite --module stream --filter node-suite/stream/readable/from-string-single-chunk
• cargo check -p perry-runtime
• cargo fmt --all --check
• jq empty test-parity/known_failures.json
• git diff --check