Simplify filter group and parser string assembly

Author: stevebauman

src/Query/Filter/AndGroup.php

@@ -42,7 +42,7 @@ public function getOperator(): string
      */
     public function getRaw(): string
     {
-        return '&'.implode(array_map(fn (Filter $filter) => (string) $filter, $this->filters));
+        return '&'.implode($this->filters);
     }
 
     /**

src/Query/Filter/OrGroup.php

@@ -42,7 +42,7 @@ public function getOperator(): string
      */
     public function getRaw(): string
     {
-        return '|'.implode(array_map(fn (Filter $filter) => (string) $filter, $this->filters));
+        return '|'.implode($this->filters);
     }
 
     /**

src/Query/Filter/Parser.php

@@ -48,10 +48,7 @@ protected static function match(string $string): array
      */
     public static function assemble(Filter|array $filters = []): string
     {
-        return implode(array_map(
-            fn (Filter $filter) => (string) $filter,
-            Arr::wrap($filters)
-        ));
+        return implode(Arr::wrap($filters));
     }
 
     /**