Fix #1181 Add exception handling for socket mode - socket.timeout: the read operation timed out

[seratch]

Summary

This pull request resolves #1181

Category (place an x in each of the [ ])

• slack_sdk.web.WebClient (sync/async) (Web API client)
• slack_sdk.webhook.WebhookClient (sync/async) (Incoming Webhook, response_url sender)
• slack_sdk.socket_mode (Socket Mode client)
• slack_sdk.signature (Request Signature Verifier)
• slack_sdk.oauth (OAuth Flow Utilities)
• slack_sdk.models (UI component builders)
• slack_sdk.scim (SCIM API client)
• slack_sdk.audit_logs (Audit Logs API client)
• slack_sdk.rtm_v2 (RTM client)
• /docs-src (Documents, have you run ./scripts/docs.sh?)
• /docs-src-v2 (Documents, have you run ./scripts/docs-v2.sh?)
• /tutorial (PythOnBoardingBot tutorial)
• tests/integration_tests (Automated tests for this library)

Requirements (place an x in each [ ])

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.
• I've run python3 -m venv .venv && source .venv/bin/activate && ./scripts/run_validation.sh after making the changes.

[codecov]

Codecov Report

Merging #1182 (79c1ae5) into main (1778647) will decrease coverage by 0.02%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##             main    #1182      +/-   ##
==========================================
- Coverage   86.68%   86.66%   -0.03%     
==========================================
  Files         110      110              
  Lines       10829    10834       +5     
==========================================
+ Hits         9387     9389       +2     
- Misses       1442     1445       +3     

Impacted Files	Coverage Δ
slack_sdk/socket_mode/builtin/connection.py	68.23% <83.33%> (+0.23%)	⬆️
slack_sdk/socket_mode/builtin/internals.py	70.61% <0.00%> (-1.76%)	⬇️
slack_sdk/socket_mode/builtin/client.py	91.77% <0.00%> (+1.26%)	⬆️

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[mwbrooks]

Thanks for quickly adding this change!

[mwbrooks]

👌🏻