url-loader is using graphql-upload explictly

[dotansimha]

graphql-tools/packages/loaders/url/src/index.ts

Line 155 in 633929a

async createFormDataFromVariables<TVariables>({ query, variables }: { query: string; variables: TVariables }) {

It should be a peer dependency and loaded dynamically only if it's there. It's crucial because graphql-upload has issues when there are multiple version of it (see jaydenseric/graphql-upload#185 (comment))