Set socket_timeout default value to 5 seconds

[zioproto]

Fixes #119

Pull Request check-list

• Do tests and lints pass with this change?
• Do the CI tests pass with this change (enable it first in your forked repo and wait for the github action build to finish)?
• Is the new or changed code fully tested?
• Is a documentation update included (if this change modifies existing APIs, or introduces new ones)?
• Is there an example added to the examples folder (if applicable)?

Description of change

Setting a default timeout value for TCP connections to avoid the process hanging forever on a TCP connection in SYN_SENT.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.17%. Comparing base (49a9618) to head (02effb2).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #120      +/-   ##
==========================================
- Coverage   75.17%   75.17%   -0.01%     
==========================================
  Files         132      132              
  Lines       34480    34480              
==========================================
- Hits        25922    25921       -1     
- Misses       8558     8559       +1     

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[zioproto]

@aiven-sal as discussed in #119 I have set the default value to 5 seconds

[aiven-sal]

Looks great! Thanks a lot!