[extension/httpforwarder] Promote httpforwarder as stable

[atoulme]

Component(s)

extension/httpforwarder

Describe the issue you're reporting

I would like to propose that the extension httpforwarder be considered stable, as it has not changed for some time, is used in production in many environments, and no further development is expected.

[dmitryax]

Can we resolve #11128 first?

[dmitryax]

The reason this extension was added is to proxy Signalfx property updates that should be replaced with something that is OTel-compliant going forward. Not sure if this extension is used for any other use cases. I suggest keeping this issue open to gather more evidence that this extension is being used for something else before declaring it stable.

[atoulme]

On 1/11, we had during the SIG meeting a discussion of this issue.
This ongoing issue needs to be resolved first.
Juraci also noted that if the component depends on a library such as confighttp or configtls which are not marked stable yet, that blocks the component from being declared stable.

[github-actions]

Pinging code owners for extension/httpforwarder: @atoulme. See Adding Labels via Comments if you do not have permissions to add labels yourself.

[github-actions]

This issue has been inactive for 60 days. It will be closed in 60 days if there is no activity. To ping code owners by adding a component label, see Adding Labels via Comments, or if you are unsure of which component this issue relates to, please ping @open-telemetry/collector-contrib-triagers. If this issue is still relevant, please ping the code owners or leave a comment explaining why it is still relevant. Otherwise, please close it.

Pinging code owners:

• extension/httpforwarder: @atoulme @rmfitzpatrick

See Adding Labels via Comments if you do not have permissions to add labels yourself.

[github-actions]

This issue has been inactive for 60 days. It will be closed in 60 days if there is no activity. To ping code owners by adding a component label, see Adding Labels via Comments, or if you are unsure of which component this issue relates to, please ping @open-telemetry/collector-contrib-triagers. If this issue is still relevant, please ping the code owners or leave a comment explaining why it is still relevant. Otherwise, please close it.

Pinging code owners:

• extension/httpforwarder: @atoulme @rmfitzpatrick

See Adding Labels via Comments if you do not have permissions to add labels yourself.

[atoulme]

Closing as we are not going to work on this right now. We can reopen when it's time to move to stable.