message: feat(plugins/pagerduty): add ClientApiDependencies type
  * have ClientApiConfig join ClientApiDependencies with custom
  configuration
diff: @@ -81,12 +81,15 @@ export type OnCallsResponse = {
  oncalls: OnCall[];
  };
  -export type ClientApiConfig = {
  - eventsBaseUrl?: string;
  +export type ClientApiDependencies = {
  discoveryApi: DiscoveryApi;
  fetchApi: FetchApi;
  };
  +export type ClientApiConfig = ClientApiDependencies & {
  + eventsBaseUrl?: string;
  +};
  +
  export type RequestOptions = {
  method: string;
  headers: HeadersInit;
  