Clarify environment variable substitution is not recursive

[marcalff]

trafficstars

Fixes #3894

Changes

In the SDK file configuration, clarify environment variable substitution is not recursive.

For non-trivial changes, follow the change proposal process.

• [X] Related issues #3894
• [ ] Related OTEP(s) #
• [ ] Links to the prototypes (when adding or changing features)
• [X] CHANGELOG.md file updated for non-trivial changes
• [ ] spec-compliance-matrix.md updated if necessary

[marcalff]

cc @jack-berg

[jack-berg]

Can you add a changelog entry? Thanks!

[marcalff]

Can you add a changelog entry? Thanks!

Done.

[jack-berg]

cc @open-telemetry/configuration-maintainers

[github-actions[bot]]

This PR was marked stale due to lack of activity. It will be closed in 7 days.

[carlosalberto]

Ping @open-telemetry/configuration-maintainers (otherwise we are good to go)

[marcalff]

Ping @open-telemetry/configuration-maintainers (otherwise we are good to go)

@jack-berg is part of configuration-maintainers, and already approved. Not sure how many approvals are needed.

[carlosalberto]

Merging this one.

cc @MrAlias @ocelotl