`OTEL_RESOURCE_ATTRIBUTES` parsing has whitespace in keys

[inssein]

We run all of our services in Kubernetes, and define our open telemetry resource attributes like so:

            - name: OTEL_RESOURCE_ATTRIBUTES
              value: >
                service.name=redacted,
                service.version=redacted,
                k8s.node.name=$(KUBE_NODE_NAME),
                k8s.pod.name=$(KUBE_POD_NAME),
                k8s.pod.uid=$(KUBE_POD_ID),
                k8s.namespace.name=$(KUBE_NAMESPACE)

All of our other services (java, python) seem to split on "=" and then clean up whitespace in the key, but unfortunately the ruby library sends over service.version=redacted (note the whitespace in front of the key).

Looks like the problem is here: https://github.com/open-telemetry/opentelemetry-ruby/blob/main/sdk/lib/opentelemetry/sdk/resources/resource.rb#L47-L50

[github-actions]

👋 This issue has been marked as stale because it has been open with no activity. You can: comment on the issue or remove the stale label to hold stale off for a while, add the keep label to hold stale off permanently, or do nothing. If you do nothing this issue will be closed eventually by the stale bot.

[kaylareopelle]

This is being worked on in #1541

[github-actions]

👋 This issue has been marked as stale because it has been open with no activity. You can: comment on the issue or remove the stale label to hold stale off for a while, add the keep label to hold stale off permanently, or do nothing. If you do nothing this issue will be closed eventually by the stale bot.