Ignore buggy clippy::incompatible_msrv lint

Author: taiki-e

Cargo.toml

@@ -25,3 +25,5 @@ rust_2018_idioms = "warn"
 single_use_lifetimes = "warn"
 unreachable_pub = "warn"
 # unsafe_op_in_unsafe_fn = "warn" # Set at crate-level instead since https://github.com/rust-lang/rust/pull/100081 is not available on MSRV
+[workspace.lints.clippy]
+incompatible_msrv = { level = "allow", priority = 1 } # https://github.com/rust-lang/rust-clippy/issues/12273, https://github.com/rust-lang/rust-clippy/issues/12257