[Access] Configure ws connection in ws controller

[UlyanaAndrukhiv]

Closes: #6638

Context

This PR implements the initial WebSocket connection configuration for the new WebSocket controller. The changes focus on setting up timeouts and ensuring the connection remains responsive, preventing the server from blocking indefinitely while waiting for the client to send or receive messages:

• configureConnection: Sets an initial read deadline to prevent waiting indefinitely for a pong message. Establishes a Pong handlerthat resets the read deadline each time a pong is received, keeping the connection alive.

• Write Deadline Timeout: Adds SetWriteDeadline to ensure write operations time out if not completed within writeWait, preventing resource exhaustion from slow or unresponsive clients.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 50.00000% with 17 lines in your changes missing coverage. Please review.

Project coverage is 41.22%. Comparing base (8a3055c) to head (04e392c).

Files with missing lines	Patch %	Lines
engine/access/rest/websockets/controller.go	46.42%	11 Missing and 4 partials :warning:
...access/rest/websockets/legacy/websocket_handler.go	66.66%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #6750 +/- ## ========================================== - Coverage 41.26% 41.22% -0.04% ========================================== Files 2061 2061 Lines 182702 182728 +26 ========================================== - Hits 75384 75333 -51 - Misses 101010 101077 +67 - Partials 6308 6318 +10 ``` | [Flag](https://app.codecov.io/gh/onflow/flow-go/pull/6750/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=onflow) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/onflow/flow-go/pull/6750/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=onflow) | `41.22% <50.00%> (-0.04%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=onflow#carryforward-flags-in-the-pull-request-comment) to find out more.

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[illia-malachyn]

LGTM! Let's add tests for this in this PR as they're related https://github.com/onflow/flow-go/pull/6757