Use Attribute rather than boundattribute in logrecord repr

[pegasas]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes #3547

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A

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

[srikanthccv]

This is not the correct fix. We should continue to use bounded attributes but the repr and string methods should be fixed.

[pegasas]

This is not the correct fix. We should continue to use bounded attributes but the repr and string methods should be fixed.

Thanks for guidance.
It seems it is related to __repr__ method.

[ocelotl]

@srikanthccv PTAL, I think @pegasas has added a fix for your comment.

[srikanthccv]

Please fix lint

[pegasas]

Please fix lint

Thanks for calling out.
Done.

[hirotasoshu]

@pegasas @srikanthccv @ocelotl I think changelog in this PR is misleading