Stability level undefined

[codeboten]

Describe the bug

With the current code in main, the following message is displayed for all components that are passing a stability level as an option to the factory.

Stability level of component undefined	{"kind": "receiver", "name": "hostmetrics", "pipeline": "metrics", "stability": "undefined"}

This may surprise users upgrading to this version. Some ways we could mitigate this:

1. change the log level to debug (or not log at all) for undefined stability level, until the next release
2. apply a stability level to all the components

I have a PR for option 1 here and option 2 here

[jpkrohling]

Option 2 would be my preferred solution, but given that we have a release right around the corner, it might be safer to do option 1.

[tigrannajaryan]

Let's go with option 1.

[codeboten]

This is fixed, closing