It appears that current version of keyvault packages only uses a type from @azure/core-http-compat

keyvault-keys/src/keysModels.ts:5:import type { ExtendedCommonClientOptions } from "@azure/core-http-compat";
keyvault-secrets/src/secretsModels.ts:5:import type { ExtendedCommonClientOptions } from "@azure/core-http-compat";
keyvault-certificates/src/certificatesModels.ts:6:import type { ExtendedCommonClientOptions } from "@azure/core-http-compat";

It's better to define that inline if there's no runtime dependency on @azure/core-http-compat any more.