WIP NETOBSERV-1471 add tcp write stage

[jpinsonneau]

Description

This PR adds TCP write stage to FLP. We need to decide if we move to gRPC instead before merging.

Dependencies

n/a

Checklist

If you are not familiar with our processes or don't know what to answer in the list below, let us know in a comment: the maintainers will take care of that.

• [ ] Will this change affect NetObserv / Network Observability operator? If not, you can ignore the rest of this checklist.
• [ ] Is this PR backed with a JIRA ticket? If so, make sure it is written as a title prefix (in general, PRs affecting the NetObserv/Network Observability product should be backed with a JIRA ticket - especially if they bring user facing changes).
• [ ] Does this PR require product documentation?
  • [ ] If so, make sure the JIRA epic is labelled with "documentation" and provides a description relevant for doc writers, such as use cases or scenarios. Any required step to activate or configure the feature should be documented there, such as new CRD knobs.
• [ ] Does this PR require a product release notes entry?
  • [ ] If so, fill in "Release Note Text" in the JIRA.
• [ ] Is there anything else the QE team should know before testing? E.g: configuration changes, environment setup, etc.
  • [ ] If so, make sure it is described in the JIRA ticket.
• QE requirements (check 1 from the list):
  • [ ] Standard QE validation, with pre-merge tests unless stated otherwise.
  • [ ] Regression tests only (e.g. refactoring with no user-facing change).
  • [ ] No QE (e.g. trivial change with high reviewer's confidence, or per agreement with the QE team).

[openshift-ci[bot]]

Skipping CI for Draft Pull Request. If you want CI signal for your change, please convert it to an actual PR. You can still manually trigger a test run with /test all

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[codecov[bot]]

Codecov Report

Attention: 36 lines in your changes are missing coverage. Please review.

Comparison is base (831e2ad) 66.06% compared to head (7dec780) 65.77%. Report is 3 commits behind head on main.

Files	Patch %	Lines
pkg/pipeline/write/write_tcp.go	0.00%	30 Missing :warning:
pkg/config/pipeline_builder.go	0.00%	2 Missing :warning:
pkg/config/stage_params.go	0.00%	2 Missing :warning:
pkg/pipeline/pipeline_builder.go	0.00%	2 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #604 +/- ## ========================================== - Coverage 66.06% 65.77% -0.29% ========================================== Files 103 104 +1 Lines 7509 7545 +36 ========================================== + Hits 4961 4963 +2 - Misses 2255 2290 +35 + Partials 293 292 -1 ``` | [Flag](https://app.codecov.io/gh/netobserv/flowlogs-pipeline/pull/604/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=netobserv) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/netobserv/flowlogs-pipeline/pull/604/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=netobserv) | `65.77% <0.00%> (-0.29%)` | :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=netobserv#carryforward-flags-in-the-pull-request-comment) to find out more.

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[jpinsonneau]

Closing this in favor of https://github.com/netobserv/flowlogs-pipeline/pull/621