Add bool type to the $peekAhead parameter

All usages are compatible with the bool type,
so the parameter is typed as bool and the cast is removed.

Author: BastianLedererIcinga

src/Query.php

@@ -688,9 +688,9 @@ public function first(): ?Model
      *
      * @return $this
      */
-    public function peekAhead($peekAhead = true): static
+    public function peekAhead(bool $peekAhead = true): static
     {
-        $this->peekAhead = (bool) $peekAhead;
+        $this->peekAhead = $peekAhead;
 
         return $this;
     }