test(spanner): rename PgQueryTest_2 back to PgQueryTest

Author: cy-yun

Spanner/tests/System/PgQueryTest.php

@@ -41,7 +41,7 @@ class PgQueryTest extends SystemTestCase
 {
     use PgSystemTestCaseTrait;
 
-    const TABLE_NAME = 'PgQueryTest_2';
+    const TABLE_NAME = 'PgQueryTest';
 
     public static $timestampVal;
 

Spanner/tests/System/PgSystemTestCaseTrait.php

@@ -126,7 +126,7 @@ protected static function setUpTestDatabase(): void
                     boolField BOOL,
                     PRIMARY KEY (id)
                 )',
-                'CREATE TABLE IF NOT EXISTS PgQueryTest_2 (
+                'CREATE TABLE IF NOT EXISTS PgQueryTest (
                     id bigint NOT NULL,
                     name varchar(1024),
                     registered bool,