fix(sink socket): fix regression for udp socket recovery after error (#25804)

[jcantrill]

Summary

This PR restores the behavior with a configured UDP socket to rebuild the socket after detecting an error.

Vector configuration

How did you test this PR?

• feat(e2e test): add e2e test to verify udp recovery openshift/cluster-logging-operator#3346
  Steps:
• Deploy vector to write UDP over socket
• Verify logs are received
• Kill the receiver multiple times
• Confirm logs are no longer received.

Change Type

• Bug fix
• New feature
• Dependencies
• Non-functional (chore, refactoring, docs)
• Performance

Is this a breaking change?

• Yes
• No

Does this PR include user facing changes?

• Yes. Please add a changelog fragment based on our guidelines.
• No. A maintainer will apply the no-changelog label to this PR.

References

• Closes: UDP socket continues to use potentially broken socket after error #25804
• This PR fixes the regression introduced by feat(codecs): Support GELF chunking for encoding #23728

Notes

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[jcantrill]

cc @vparfonov

[datadog-vectordotdev]

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