chore: correct MSRV listed in Cargo.toml (#3872)

# Description

## Problem\*

Resolves <!-- Link to GitHub Issue -->

## Summary\*



## Additional Context



## Documentation\*

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# PR Checklist\*

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and/or `cargo fmt` on default settings.

Cargo.toml

@@ -42,7 +42,7 @@ version = "0.22.0"
 # x-release-please-end
 authors = ["The Noir Team <[email protected]>"]
 edition = "2021"
-rust-version = "1.66"
+rust-version = "1.71.1"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/noir-lang/noir/"