[CI] Update labeler workflow configuration to include issue label`area/certifications`



### Desired Behavior
Update [labeler workflow configuration](https://github.com/layer5io/academy-theme/blob/master/.github/labeler.yml) to include issue label [area/certifications ](https://github.com/layer5io/academy-theme/issues?q=state%3Aopen%20label%3Aarea%2Fcertifications).


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#### Contributor Guide and Resources

- 📚 [Instructions for contributing to academy-theme](https://github.com/layer5io/academy-theme/blob/master/CONTRIBUTING.md)
  - academy-example documentation [site](https://docs.layer5.io/cloud/academy/) and [source](https://github.com/layer5io/academy-example/)
- 🎨 Wireframes and [designs for Layer5 site](https://www.figma.com/file/5ZwEkSJwUPitURD59YHMEN/Layer5-Designs) in Figma [(open invite)](https://www.figma.com/team_invite/redeem/qJy1c95qirjgWQODApilR9)
- 🙋🏾🙋🏼 Questions: [Layer5 Discussion Forum](https://discuss.layer5.io) and [Layer5 Community Slack](http://slack.layer5.io)


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[CI] Update labeler workflow configuration to include issue label`area/certifications` #133

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[CI] Update labeler workflow configuration to include issue labelarea/certifications #133

Description

Desired Behavior

Contributor Guide and Resources

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions

[CI] Update labeler workflow configuration to include issue label`area/certifications` #133