[Dev Deps] add missing peer dep

Author: ljharb

package.json

@@ -32,6 +32,7 @@
 		"@ljharb/eslint-config": "^21.1.1",
 		"auto-changelog": "^2.5.0",
 		"available-typed-arrays": "^1.0.7",
+		"encoding": "^0.1.13",
 		"eslint": "=8.8.0",
 		"for-each": "^0.3.5",
 		"npmignore": "^0.3.1",