MC-38765: Ensure there are no split db specific tests

- change method name

Author: krissyhiserote

dev/tests/setup-integration/framework/Magento/TestFramework/Deploy/ShardingConfig.php

@@ -35,9 +35,9 @@ public function __construct(ConfigWriter $configWriter, ConfigReader $configRead
     }
 
     /**
-     * Add sharding database connection to env file
+     * Apply sharding database connection to env file
      */
-    public function addConfiguration()
+    public function applyConfiguration()
     {
         $allDbData = include TESTS_INSTALLATION_DB_CONFIG_FILE;
         $config = $this->configReader->load(ConfigFilePool::APP_ENV);

dev/tests/setup-integration/testsuite/Magento/Setup/ShardingTest.php

@@ -67,7 +67,7 @@ protected function setUp(): void
      */
     public function testInstall()
     {
-        $this->shardingConfig->addConfiguration();
+        $this->shardingConfig->applyConfiguration();
         $this->cliCommand->install(['Magento_TestSetupDeclarationModule2']);
         $this->deploymentConfig->resetData();
 
@@ -87,7 +87,7 @@ public function testInstall()
      */
     public function testUpgrade()
     {
-        $this->shardingConfig->addConfiguration();
+        $this->shardingConfig->applyConfiguration();
         $this->cliCommand->install(['Magento_TestSetupDeclarationModule2']);
         $this->deploymentConfig->resetData();
         $this->cliCommand->upgrade();