The ws v8 library throws a plain Error('Opening handshake has timed out') with no
.code and name 'Error' when the handshake timeout (JAMBONES_WS_HANDSHAKE_TIMEOUT_MS,
default 1500ms) elapses. BaseRequestor._shouldRetry classified retryable errors only
by .code/.name/.statusCode, so this error matched neither the ct nor rt bucket and was
never retried under the default rp=ct policy — the call failed immediately on the first
attempt, silently bypassing maxReconnects.
Match the handshake-timeout message in the ct bucket so a transient slow WS upgrade
(e.g. a serverless/edge backend cold start) is retried as intended. Adds tape coverage
for both the default-ct retry path and the rp=4xx no-retry path.
Ben Younes