fix(otlp): align with upstream pb definition

[chong1144]

Description

fix opentelemetry-proto changing to resource span definition.

Ref: open-telemetry/opentelemetry-proto#362

Type of change

• Bug fix (non-breaking change which fixes an issue)

Does This PR Require a Contrib Repo Change?

Answer the following question based on these examples of changes that would require a Contrib Repo Change:

• The OTel specification has changed which prompted this PR to update the method interfaces of opentelemetry-api/ or opentelemetry-sdk/

• The method interfaces of test/util have changed

• Scripts in scripts/ that were copied over to the Contrib repo have changed

• Configuration files that were copied over to the Contrib repo have changed (when consistency between repositories is applicable) such as in

  • pyproject.toml
  • isort.cfg
  • .flake8

• When a new .github/CODEOWNER is added

• Major changes to project information, such as in:

  • README.md
  • CONTRIBUTING.md

• Yes. - Link to PR:

• No.

Checklist:

• Followed the style guidelines of this project
• Changelogs have been updated
• Unit tests have been added
• Documentation has been updated

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: chong1144 / name: WangSen (03473b0, 5c88ed5)

[codeboten]

I believe this PR is already included in #2583

[srikanthccv]

@chong1144 This was already addressed in #2583 and pushed out in 1.11.1 release.

[lzchen]

Closing this as it has already been addressed.