impl_trait_overcaptures: Set MSRV to 1.82

[joshtriplett]

+ use<'a> syntax was stabilized in Rust 1.82:
#127672

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[hanna-kruppe]

Let's have a single PR for this, #159158, and #159159 -- all three are edition migration lints suggesting syntax stabilized in 1.82, so any discussion likely applies equally to all of them.