fix(deps): update rust crate graphql_client to 0.16.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
graphql_client	dependencies	minor	0.14.0 → 0.16.0

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Release Notes

graphql-rust/graphql-client (graphql_client)

v0.16.0

Compare Source

• Revert integer ID deserialization support (introduced in #​476). It introduced regressions.

v0.15.0

Compare Source

• Support for deprecated directive on InputValue fields (#​553)
• Support for custom variable and response types (#​536)
• Allow using #[derive(GraphQLQuery)] without depending on serde directly (#​487)
• CLI option for extern enums (#​520)
• Support deserializing IDs from integers or strings (#​476)
• Introspection schema now includes oneOf and specifiedByUrl (#​501)
• Update reqwest to 0.12 (#​499)
• Fix required ID deserialization (#​523)
• Fix skip_serializing_none for root level variables (#​485)
• Use consistent reference to graphql_client crate in codegen (#​484)
• Fix multiple operations example in README (#​497)

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