[Dev Deps] add missing peer dep

Author: ljharb

package.json

@@ -51,6 +51,7 @@
 		"auto-changelog": "^2.5.0",
 		"available-regexp-flags": "^1.0.4",
 		"eclint": "^2.8.1",
+		"encoding": "^0.1.13",
 		"es-value-fixtures": "^1.5.0",
 		"eslint": "=8.8.0",
 		"evalmd": "^0.0.19",