feat: require at least Node.js 18.12.0

Author: iiroj

.changeset/dull-moons-double.md

@@ -0,0 +1,10 @@
+---
+'lint-staged': major
+---
+
+**Require at least Node.js 18.12.0**
+
+This release drops support for Node.js 16, which is EOL after 2023-09-11.
+Please upgrade your Node.js to the latest version.
+
+Additionally, all dependencies have been updated to their latest versions.