Rename plugins to libs and update all file references

libs/vendor/illuminate/contracts/Validation/InvokableRule.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Illuminate\Contracts\Validation;
+
+use Closure;
+
+/**
+ * @deprecated see ValidationRule
+ */
+interface InvokableRule
+{
+    /**
+     * Run the validation rule.
+     *
+     * @param  string  $attribute
+     * @param  mixed  $value
+     * @param  \Closure(string, ?string=): \Illuminate\Translation\PotentiallyTranslatedString  $fail
+     * @return void
+     */
+    public function __invoke(string $attribute, mixed $value, Closure $fail);
+}