fix(ext/node): handle connectionsCheckingInterval option and send 408 for request timeout (#33836)
## Summary
Enables `test-http-server-request-timeout-interrupted-headers` in
node_compat suite.
## Test plan
- [x] `cargo test --test node_compat --
test-http-server-request-timeout-interrupted-headers`
Co-authored-by: Divy Srivastava <me@littledivy.com>