feat(firebaseml): update the api

#### firebaseml:v2beta

The following keys were added:
- schemas.GoogleCloudAiplatformV1beta1ApiAuth (Total Keys: 7)
- schemas.GoogleCloudAiplatformV1beta1AuthConfig (Total Keys: 28)
- schemas.GoogleCloudAiplatformV1beta1ExternalApi (Total Keys: 17)
- schemas.GoogleCloudAiplatformV1beta1FunctionDeclaration.properties.parametersJsonSchema.type (Total Keys: 1)
- schemas.GoogleCloudAiplatformV1beta1FunctionDeclaration.properties.responseJsonSchema.type (Total Keys: 1)
- schemas.GoogleCloudAiplatformV1beta1GenerationConfig.properties.enableAffectiveDialog.type (Total Keys: 1)
- schemas.GoogleCloudAiplatformV1beta1GenerationConfig.properties.responseJsonSchema.type (Total Keys: 1)
- schemas.GoogleCloudAiplatformV1beta1Retrieval.properties.externalApi.$ref (Total Keys: 1)
- schemas.GoogleCloudAiplatformV1beta1VertexAISearch.properties.dataStoreSpecs (Total Keys: 2)
- schemas.GoogleCloudAiplatformV1beta1VertexAISearchDataStoreSpec (Total Keys: 4)

Author: yoshi-automation