devops: Add test-linting to pre-commit hook

Adds `--all-targets` to the pre-commit hook by following the guide in
https://github.com/rhysd/cargo-husky?tab=readme-ov-file#user-hooks

Author: Sword-Smith

.cargo-husky/hooks/pre-commit

@@ -0,0 +1,11 @@
+#!/bin/sh
+#
+# This hook was defined by sword-smith <[email protected]>
+# It's intended to be copied to `.git/hooks/` by `cargo-husky`.
+
+set -e
+
+echo '+cargo clippy --all-targets -- -D warnings'
+cargo clippy --all-targets -- -D warnings
+echo '+cargo fmt --all -- --check'
+cargo fmt --all -- --check

twenty-first/Cargo.toml

@@ -29,7 +29,7 @@ trybuild = "1.0"
 [dev-dependencies.cargo-husky]
 version = "1"
 default-features = false
-features = ["precommit-hook", "run-cargo-clippy", "run-cargo-fmt"]
+features = ["user-hooks"]
 
 [dependencies]
 arbitrary = { version = "1", features = ["derive"] }