Build/Test Tools: Add missing newline character on unit tests files after [54443].

Follow-up to [54443].

See #56611.


git-svn-id: https://develop.svn.wordpress.org/trunk@54444 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/theme/wpThemeJson.php

@@ -3997,4 +3997,4 @@ class Tests_Theme_wpThemeJson extends WP_UnitTestCase {
 			),
 		);
 	}
-}
+}

tests/phpunit/tests/theme/wpThemeJsonResolver.php

@@ -452,4 +452,4 @@ class Tests_Theme_wpThemeJsonResolver extends WP_UnitTestCase {
 		$this->assertIsArray( $post2 );
 		$this->assertSameSets( array(), $post2 );
 	}
-}
+}