chore(husky): tidy commit-msg and pre-commit

Author: remarkablemark

.husky/commit-msg

@@ -1,4 +1,4 @@
-#!/bin/sh
-. "$(dirname "$0")/_/husky.sh"
+#!/usr/bin/env sh
+. "$(dirname -- "$0")/_/husky.sh"
 
 npx commitlint --edit $1

.husky/pre-commit

@@ -1,5 +1,5 @@
-#!/bin/sh
-. "$(dirname "$0")/_/husky.sh"
+#!/usr/bin/env sh
+. "$(dirname -- "$0")/_/husky.sh"
 
 npm run test:ci
 npm run test:esm