fix small code style issues

src/Aggregation/Bucketing/AutoDateHistogramAggregation.php

@@ -38,11 +38,13 @@ class AutoDateHistogramAggregation extends AbstractAggregation
 
         $this->setField($field);
 
-        if ($buckets)
+        if ($buckets) {
             $this->addParameter('buckets', $buckets);
+        }
 
-        if ($format)
+        if ($format) {
             $this->addParameter('format', $format);
+        }
     }
 
     /**

src/Query/Joining/ParentIdQuery.php

@@ -55,4 +55,4 @@ class ParentIdQuery implements BuilderInterface
 
         return [$this->getType() => $output];
     }
-}
+}
\ No newline at end of file

tests/Unit/Aggregation/Bucketing/AdjacencyMatrixAggregationTest.php

@@ -67,8 +67,8 @@ class AdjacencyMatrixAggregationTest extends \PHPUnit\Framework\TestCase
             ->method('toArray')
             ->willReturn(['test_field' => ['test_value' => 'test']]);
 
-        $aggregation->addFilter('first', $filter );
-        $aggregation->addFilter('second', $filter );
+        $aggregation->addFilter('first', $filter);
+        $aggregation->addFilter('second', $filter);
 
         $results = $aggregation->toArray();
         $expected = [