updated postgres adapter and tests

Author: ArnabChatterjee20k

src/Database/Adapter/Postgres.php

@@ -239,7 +239,6 @@ public function createCollection(string $name, array $attributes = [], array $in
                 \"_updatedAt\" TIMESTAMP(3) DEFAULT NULL,
                 \"_createdBy\" VARCHAR(255) DEFAULT NULL,
                 \"_updatedBy\" VARCHAR(255) DEFAULT NULL,
-                _permissions TEXT DEFAULT NULL,
                 " . \implode(' ', $attributeStrings) . "
                 _permissions TEXT DEFAULT NULL
             );

tests/e2e/Adapter/Scopes/DocumentTests.php

@@ -1214,6 +1214,7 @@ public function testIncreaseDecrease(): Document
         $document = $database->getDocument($collection, $document->getId());
         $this->assertEquals(104.4, $document->getAttribute('increase_float'));
 
+        $database->deleteCollection($collection);
         return $document;
     }
 
@@ -6239,6 +6240,8 @@ public function testCreatedByUpdatedBy(): void
             $doc = $database->getDocument($collection, $document->getId());
             $this->assertEquals('test_user_3', $doc->getCreatedBy());
             $this->assertEquals('test_user_5', $doc->getUpdatedBy());
+
+            $database->deleteCollection($collection);
         }
     }
 }