[processor/resourcedetection] Add os.version resource attribute

[avilevy18]

Description

Adding the os.version resource attribute to system resourcedetection processor

Link to tracking issue

Fixes: #38059

Testing

Updated unit tests.

Documentation

N/A

[ridwanmsharif]

Thanks for the PR @avilevy18!

[ridwanmsharif]

@avilevy18 you need to gofmt the files and also add a change log entry: https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#adding-a-changelog-entry

[ridwanmsharif]

You might need to rebase on main again for the vuln fixes.

@Aneurysm9 do you mind taking a look at this PR when you have a chance?

[atoulme]

Please address my review.

[ridwanmsharif]

LGTM

[ridwanmsharif]

It is confusing for me as to why some of these attributes are enabled by default and why others are not.

I found #21482 which adds some context for atleast host.id which is reasonable.

IMO though, the os.version though reasonably should be enabled here by default but I'm okay with the earlier suggestion of making this enabled by default as a separate change that we mark as breaking in the changelog.

[atoulme]

think of this also as a way to test things out for some users before we turn this on by default. This is all the more true for metrics, resource attributes can create time series recreations which can be painful if users are not aware of it.