[TSP Migration][keyvault] TypeSpec migrated from swagger

[melina5656]

This PR includes the following:

1. Generate TypeSpec
2. Use TypeSpec to generate a new swagger
3. Fix TypeSpec so that the new swagger generated is consistent with the original swagger

[openapi-pipeline-app]

Next Steps to Merge

Next steps that must be taken to merge this PR:

• ❌ This is the public specs repo main branch which is not intended for iterative development.
  You must acknowledge that you understand that after this PR is merged, you won't be able to stop your changes from being published to Azure customers.
  If this is what you intend, add PublishToCustomers label to your PR.
  Otherwise, retarget this PR onto a feature branch, i.e. with prefix release- (see aka.ms/azsdk/api-versions#release--branches).
• ❌ The required check named TypeSpec Validation has failed. Refer to the check in the PR's 'Checks' tab for details on how to fix it and consult the aka.ms/ci-fix guide

[openapi-pipeline-app]

Generated ApiView

Language	Package Name	ApiView Link
Go	sdk/resourcemanager/keyvault/armkeyvault	https://apiview.dev/Assemblies/Review/3db6674029d04e7db876e72a8c438a25?revisionId=8acfb1f74c584c43b959b3d7b234073c
JavaScript	@azure/arm-keyvault	https://apiview.dev/Assemblies/Review/8de2ee660a1e46cd85946f2304f47b94?revisionId=96b5caa79c3b44f68c793b26747d00f9
Java	azure-resourcemanager-keyvault-generated	https://apiview.dev/Assemblies/Review/590206846118422ca4261d2c2c961fb5?revisionId=3531b7b713254e40a24899b993c6792e

[azure-sdk]

API change check

APIView has identified API level changes in this PR and created following API reviews.

Microsoft.KeyVault
Microsoft.KeyVault