Replace double quotes around the teamcity prefix string with single quotes

Author: smirok

src/Logging/TeamCity/TeamCityLogger.php

@@ -296,7 +296,7 @@ private function writeMessage(string $eventName, array $parameters = []): void
     {
         $this->printer->print(
             sprintf(
-                "##teamcity[%s",
+                '##teamcity[%s',
                 $eventName,
             ),
         );