Bump MSRV to 1.87 (#15441)

## Summary

Per our N-2 policy (1.89 is latest).

Cargo.toml

@@ -12,7 +12,7 @@ resolver = "2"
 
 [workspace.package]
 edition = "2024"
-rust-version = "1.86"
+rust-version = "1.87"
 homepage = "https://pypi.org/project/uv/"
 documentation = "https://pypi.org/project/uv/"
 repository = "https://github.com/astral-sh/uv"

crates/uv-install-wheel/src/wheel.rs

@@ -665,8 +665,8 @@ pub(crate) fn install_data(
             }
             _ => {
                 return Err(Error::InvalidWheel(format!(
-                    "Unknown wheel data type: {:?}",
-                    entry.file_name()
+                    "Unknown wheel data type: {}",
+                    entry.file_name().display()
                 )));
             }
         }