Add labeler GitHub action for docs

[IanMadd]

Description

Add the GitHub labeler action to automatically add the Documentation label to docs PRs.

Related Issue

Types of changes

• [ ] 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 change)
• [ ] Chore (non-breaking change that does not add functionality or fix an issue)

Checklist:

• [ ] I have read the CONTRIBUTING document.
• [ ] I have run the pre-merge tests locally and they pass.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] If Gemfile.lock has changed, I have used --conservative to do it and included the full output in the Description above.
• [ ] All new and existing tests passed.
• [ ] All commits have been signed-off for the Developer Certificate of Origin.

[netlify[bot]]

👷 Deploy Preview for chef-workstation processing.

Name	Link
🔨 Latest commit	e81531105e9ecf96a0484f3cd4de5d2161471e85
🔍 Latest deploy log	https://app.netlify.com/sites/chef-workstation/deploys/657b721be392600007be7058

[sonarqubecloud[bot]]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[sonarqube-for-infrastructure-prod[bot]]

SonarQube Quality Gate

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information