Add wasm-opt-for-rust-maintenance-7

[brson]

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Link to the application pull request: w3f/Grants-Program#1305

We upgraded wasm-opt-rs to binaryen 113, published wasm-opt 0.113.0, and upgraded cargo-contract and substrate-wasm-builder.

[semuelle]

Thanks for the delivery, @brson. Happy to approve. Evaluation notes here.