MINOR: Fix Log4j configuration file path in kafka-run-class.bat

[duantihua]

Fix log prompt error, when running bin/windows/kafka-storage.bat random-uuid, there will be a prompt "main ERROR Reconfigure failed: No configuration found for '24d46ca6' at 'null' in 'null'".

1. In the case of using delayed binding in the script, the execution result of findstr is not reflected in %ERRORLEVEL%, so it is changed to ! ERRORLEVEL!.
2. Change the config/tool-log4j2.yaml in the prompt to config/tools-log4j2.yaml based on the actual file.
3. By default, if KAFKA_LOG4_OPTS is set to - DLlog4j2. configurationFile=file:%BASE-DIR%/config/tools-log4j2.yaml
   It will output 'main ERROR Reconfigure failed: No configuration found for' 24d46ca6 'at' null 'in' null ''.If the file: prefix is removed, it can be fixed

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