Fixed Unit Test based on 2.4.3-develop changes

Author: Gabriel Galvao da Gama

app/code/Magento/Email/Test/Unit/Model/Template/FilterTest.php

@@ -489,7 +489,7 @@ public function testConfigDirectiveUnavailable()
     public function testConfigDirectiveGetCountry()
     {
         $path = "general/store_information/country_id";
-        $availableConfigs = [['value' => $path]];
+        $availableConfigs = ['value' => $path];
         $construction = ["{{config path={$path}}}", 'config', " path={$path}"];
         $expectedCountry = 'United States';
 
@@ -499,7 +499,7 @@ public function testConfigDirectiveGetCountry()
         $this->store->expects($this->any())->method('getId')->willReturn(1);
 
         $this->configVariables->expects($this->once())
-            ->method('getData')
+            ->method('getAvailableVars')
             ->willReturn($availableConfigs);
 
         $this->storeInformation->expects($this->once())
@@ -515,7 +515,7 @@ public function testConfigDirectiveGetCountry()
     public function testConfigDirectiveGetRegion()
     {
         $path = "general/store_information/region_id";
-        $availableConfigs = [['value' => $path]];
+        $availableConfigs = ['value' => $path];
         $construction = ["{{config path={$path}}}", 'config', " path={$path}"];
         $expectedRegion = 'Texas';
 
@@ -525,7 +525,7 @@ public function testConfigDirectiveGetRegion()
         $this->store->expects($this->any())->method('getId')->willReturn(1);
 
         $this->configVariables->expects($this->once())
-            ->method('getData')
+            ->method('getAvailableVars')
             ->willReturn($availableConfigs);
 
         $this->storeInformation->expects($this->once())