[YuvrajLamba01]

What type of PR is this?

/kind bug

What this PR does / why we need it:

According to the API client documentation and kubernetes/client/rest.py:211-246, _request_timeout can be passed either as a single numeric value (total timeout) or as a pair (tuple) of (connection, read) timeouts.

When using kubernetes.stream (e.g. connect_get_namespaced_pod_exec), passing a tuple previously caused a crash in WSClient.run_forever:

Exception when calling CoreV1Api->connect_get_namespaced_pod_exec: (0)
Reason: '<' not supported between instances of 'float' and 'tuple'

In addition, create_websocket() was not forwarding the connect timeout component to WebSocket.connect(), causing websocket handshakes to fall back to the default 30-second socket timeout even if a lower timeout was specified.

This PR addresses both issues:

1. In WSClient.run_forever, unpacks timeout = timeout[1] if timeout is a 2-tuple, avoiding the TypeError and correctly bounding execution by the read timeout.
2. In create_websocket, forwards _request_timeout[0] (or scalar _request_timeout) to connect_opt['timeout'] for WebSocket.connect().
3. Forwards _request_timeout through WSClient.__init__, websocket_call, and portforward_call.
4. Adds unit tests covering scalar and tuple timeout handling across create_websocket, run_forever, websocket_call, and _websocket_request.

Which issue(s) this PR fixes:

Fixes #2292

Special notes for your reviewer:

cc: @roycaihw @yliaog

Does this PR introduce a user-facing change?

Support (connection, read) timeout tuple format for _request_timeout in stream calls.

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[kubernetes-prow]

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This pull-request has been approved by: YuvrajLamba01
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[kubernetes-prow]

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