feat(hasura): migrate to gql mutation and gql query examples

[alicanerdurmaz]

• @refinedev/hasura: Prioritize gqlQuery and/or gqlMutation fields if provided.
• examples/data-provider-hasura: Updated to use gql queries/mutations.

https://refine.dev/docs/data/packages/hasura/

closes #5489

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Latest commit: cc7981d

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