[Dev Deps] add missing peer dep

Author: ljharb

package.json

@@ -57,6 +57,7 @@
 		"@es-shims/api": "^2.5.1",
 		"@ljharb/eslint-config": "^21.1.1",
 		"auto-changelog": "^2.5.0",
+		"encoding": "^0.1.13",
 		"eslint": "=8.8.0",
 		"evalmd": "^0.0.19",
 		"functions-have-names": "^1.2.3",