fix: Fix error due to Typescript 3.5.1

decamelizeKeys is defined to return Object, but Typescript 3.5.1 is a
bit stricter about Object and indexing properties. The correct fix
would need to be done in the type definition of humps.

src/infrastructure/KyRequester.ts

@@ -28,7 +28,7 @@ function defaultRequest(service: any, { body, query, sudo, method }) {
       headers,
       method: (method === 'stream') ? 'get' : method,
       onProgress: (method === 'stream') ? () => {} : undefined,
-      searchParams: stringify(decamelizeKeys(query || {}), { arrayFormat: 'bracket' }),
+      searchParams: stringify(decamelizeKeys(query || {}) as any, { arrayFormat: 'bracket' }),
       prefixUrl: service.url,
       json: typeof body === 'object' ? decamelizeKeys(body, skipAllCaps) : body,
       rejectUnauthorized: service.rejectUnauthorized,