Convert pipeline "TypeSpec Validation - CI" to GitHub Action

[mikeharder]

No description provided.

[openapi-pipeline-app]

PR validation pipeline restarted successfully. This comment will be populated with next steps to merge this PR once validation is completed. Please wait ⌛.

[openapi-pipeline-app]

Swagger Validation Report

️️✔️BreakingChange succeeded [Detail] [Expand]

There are no breaking changes.

️️✔️Breaking Change(Cross-Version) succeeded [Detail] [Expand]

There are no breaking changes.

️️✔️CredScan succeeded [Detail] [Expand]

There is no credential detected.

️️✔️LintDiff succeeded [Detail] [Expand]

Validation passes for LintDiff.

️️✔️Avocado succeeded [Detail] [Expand]

Validation passes for Avocado.

️️✔️SwaggerAPIView succeeded [Detail] [Expand]

️️✔️TypeSpecAPIView succeeded [Detail] [Expand]

️️✔️ModelValidation succeeded [Detail] [Expand]

Validation passes for ModelValidation.

️️✔️SemanticValidation succeeded [Detail] [Expand]

Validation passes for SemanticValidation.

️️✔️PoliCheck succeeded [Detail] [Expand]

Validation passed for PoliCheck.

️️✔️SpellCheck succeeded [Detail] [Expand]

Validation passes for SpellCheck.

️️✔️Lint(RPaaS) succeeded [Detail] [Expand]

Validation passes for Lint(RPaaS).

️️✔️PR Summary succeeded [Detail] [Expand]

Validation passes for Summary.

️⌛Automated merging requirements met pending [Detail]

_{Posted by Swagger Pipeline | How to fix these errors?}

[openapi-pipeline-app]

Swagger Generation Artifacts

️️✔️ApiDocPreview succeeded [Detail] [Expand]

_{Posted by Swagger Pipeline | How to fix these errors?}

[openapi-pipeline-app]

PR validation pipeline restarted successfully. If there is ApiView generated, it will be updated in this comment.