Bump go.mongodb.org/mongo-driver from 1.4.6 to 1.5.1 in /11-graphql-subscriptions-mongodb#2

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dependabot/go_modules/11-graphql-subscriptions-mongodb/go.mongodb.org/mongo-driver-1.5.1iproduct/coursego:dependabot/go_modules/11-graphql-subscriptions-mongodb/go.mongodb.org/mongo-driver-1.5.1Copy head branch name to clipboard