Prevent variadic args disrupting required closure param count

src/Psalm/Checker/Statements/Expression/CallChecker.php

@@ -1045,7 +1045,7 @@ class CallChecker
         $required_param_count = 0;
 
         foreach ($closure_params as $i => $param) {
-            if (!$param->is_optional) {
+            if (!$param->is_optional && !$param->is_variadic) {
                 $required_param_count = $i + 1;
             }
         }

tests/CallableTest.php

@@ -269,6 +269,15 @@ class CallableTest extends TestCase
 
                     callMeMaybe("foo");',
             ],
+            'arrayMapVariadicClosureArg' => [
+                '<?php
+                    $a = array_map(
+                      function(int $type, string ...$args):string {
+                        return "hello";
+                      },
+                      [1, 2, 3]
+                    );',
+            ],
         ];
     }