network: fix IPV6 handling for accepting connections

[jomillerOpen]

Addresses the issue of IPV6 addresses not being able to be stored properly, causing the connection to never by accepted and an endless loop occurring.

Fixes #9053

Testing
Tested on Windows 11.

Config input/output sections used:
[INPUT]
Name tcp
Chunk_Size 32
Format json
Listen [::1]
Port 5170
tag cs.systemmonitoring

[OUTPUT]
Name stdout
Format json_lines
json_date_format iso8601
json_date_key utc_timestamp
Match cs.systemmonitoring

Client app would open a TCP socket connection, send a json payload, then close the connection. Prior to this fix only IPV4 would work, using IPV6 would cause an endless loop. This fix will allow both IPV4 and IPV6 to work.

Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.

[edsiper]

CI is failing

/home/runner/work/fluent-bit/fluent-bit/src/flb_network.c:1773:36: error: passing 'struct sockaddr_storage *' to parameter of incompatible type '__SOCKADDR_ARG'
    remote_fd = accept4(server_fd, &sock_addr, &socket_size,
                                   ^~~~~~~~~~

[jomillerOpen]

I think I have a fix for the CI. Tested it out locally and it still works with this new change.

[cosmo0920]

I confirmed that this patch is working well on my local Windows box, too. 👍