Validate $columns parameter is not set when creating an agg builder

Author: GromNaN

src/Query/Builder.php

@@ -600,6 +600,10 @@ public function generateCacheKey()
     public function aggregate($function = null, $columns = [])
     {
         if ($function === null) {
+            if ($columns !== []) {
+                throw new InvalidArgumentException('Columns cannot be specified to create an aggregation builder. Add a $project stage instead.');
+            }
+
             return $this->getAggregationBuilder();
         }
 

tests/Query/BuilderTest.php

@@ -1876,6 +1876,12 @@ public static function provideExceptions(): iterable
             'First argument of MongoDB\Laravel\Query\Builder::where must be a field path as "string". Got "float"',
             fn (Builder $builder) => $builder->where(2.3, '>', 1),
         ];
+
+        yield 'aggregate with columns' => [
+            InvalidArgumentException::class,
+            'Columns cannot be specified to create an aggregation builder. Add a $project stage instead.',
+            fn (Builder $builder) => $builder->aggregate(null, ['foo']),
+        ];
     }
 
     /** @dataProvider getEloquentMethodsNotSupported */