Update and pin anyhow to 1.0.72

Summary:
anyhow-1.0.73 [uses][1] the new `Error::provide` API. This API is
available starting in Rust 1.73. This means that if you want backtraces,
you need one:

- anyhow-1.0.72 & Rust 1.72
- anyhow-1.0.73 & Rust 1.73

Since we're still on 1.72, pin the version to avoid accidentally losing
backtraces.

There are no real changes between anyhow-1.0.71 and anyhow-1.0.72. But
update to anyhow-1.0.72 so that we're right up until the point where we
get backtrace support.

[1]: dtolnay/anyhow#319

Reviewed By: shayne-fletcher

Differential Revision: D49970958

fbshipit-source-id: 1193611e6d16bc840e63b689e932ea3d33562152

watchman/cli/Cargo.toml

@@ -8,7 +8,7 @@ edition = "2021"
 
 [dependencies]
 ahash = "0.8"
-anyhow = "1.0.71"
+anyhow = "=1.0.72"
 duct = "0.13.6"
 jwalk = "0.6"
 serde = { version = "1.0.185", features = ["derive", "rc"] }