[8.x](backport #40974) Add filebeat receiver and otel consumer output

[mergify]

Proposed commit message

This PR adds a filebeat receiver and an otelconsumer output. These can be used together to run filebeat as an otel receiver.

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files
• I have added tests that prove my fix is effective or that my feature works
• I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

Disruptive User Impact

None

Author's Checklist

• [ ]

How to test this PR locally

receiver_test.go shows how receiver is created, started and stopped.

factories.Receivers, err = receiver.MakeFactoryMap(
                fbreceiver.NewFactory(),
        )

could be used in the opentelemetry collector to add the filebeat receiver.

Configuration would look like:

receivers:
  filebeatreceiver:
    filebeat:
      inputs:
        - type: benchmark
          enabled: true
          message: "test"
		  eps: 5
    output:
      otelconsumer:
    logging:
      level: debug
      selectors:
        - '*'
    processors:
      - add_fields:
          target: project
          fields:
            name: myproject
processors:
  batch:
exporters:
  debug:
    verbosity: detailed
    sampling_initial: 100
service:
  pipelines:
    logs:
      receivers: [filebeatreceiver]
      processors: [batch]
      exporters: [debug]

Related issues

Use cases

Screenshots

Logs

---

This is an automatic backport of pull request #40974 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 8b93e1c has failed:

On branch mergify/bp/8.x/pr-40974
Your branch is up to date with 'origin/8.x'.

You are currently cherry-picking commit 8b93e1c6c8.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   NOTICE.txt
	modified:   dev-tools/notice/overrides.json
	modified:   go.sum
	modified:   libbeat/cmd/instance/beat.go
	new file:   libbeat/outputs/otelconsumer/config.go
	new file:   libbeat/outputs/otelconsumer/otelconsumer.go
	new file:   libbeat/outputs/otelconsumer/otelconsumer_test.go
	modified:   libbeat/publisher/includes/includes.go
	new file:   x-pack/filebeat/fbreceiver/config.go
	new file:   x-pack/filebeat/fbreceiver/config_test.go
	new file:   x-pack/filebeat/fbreceiver/factory.go
	new file:   x-pack/filebeat/fbreceiver/receiver.go
	new file:   x-pack/filebeat/fbreceiver/receiver_test.go
	modified:   x-pack/filebeat/input/default-inputs/inputs_windows.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   go.mod

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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