How to overwrite the SAME file every hour in log4j2 - log4j

Question

I have a very simple requirement to write DEBUG logs to a file but shouldn't keep that file for more than an hour due to audit purposes. So, is there a way to overwrite the same file (file_debug) every hour automatically?
I've seen there is "delete" in log4j2 as below but don't want to use this due to security issues. Also, append="false" won't work for me as I need to retain events for an hour - not overwrite every event immediately.
<DefaultRolloverStrategy>
<Delete basePath="${baseDir}" maxDepth="2">
<IfFileName glob="*/app-*.log.gz" />
<IfLastModified age="P60D" />
</Delete>
</DefaultRolloverStrategy>
My current log4j2.xml
<?xml version="1.0" encoding="utf-8"?>
<Configuration>
<Appenders>
<RollingFile name="file" fileName="${sys:mule.home}${sys:file.separator}logs${sys:file.separator}log4j_poc.log" filePattern="${sys:mule.home}${sys:file.separator}logs${sys:file.separator}log4j_poc_%i.log">
<PatternLayout pattern="%-5p %d [%t] [processor: %X{processorPath}; event: %X{correlationId}] %c: %m%n"/>
<SizeBasedTriggeringPolicy size="10 MB"/>
<DefaultRolloverStrategy max="10"/>
</RollingFile>
<RollingFile name="file_debug" fileName="${sys:mule.home}${sys:file.separator}logs${sys:file.separator}log4j_poc_debug.log" filePattern="${sys:mule.home}${sys:file.separator}logs${sys:file.separator}log4j_poc_debug.log">
<Filters>
<ThresholdFilter level="TRACE"/>
<ThresholdFilter level="INFO" onMatch="DENY" onMismatch="NEUTRAL"/>
</Filters>
<PatternLayout pattern="%-5p %d [%t] [processor: %X{processorPath}; event: %X{correlationId}] %c: %m%n"/>
<Policies>
<SizeBasedTriggeringPolicy size="10 MB"/>
<CronTriggeringPolicy schedule="0 0 * * * ?"/>
</Policies>
<DefaultRolloverStrategy max="0"/>
</RollingFile>
</Appenders>
<Loggers>
<!-- Http Logger shows wire traffic on DEBUG. -->
<AsyncLogger name="org.mule.service.http.impl.service.HttpMessageLogger" level="DEBUG" />
<AsyncLogger name="org.mule.service.http" level="WARN"/>
<AsyncLogger name="org.mule.extension.http" level="WARN"/>
<AsyncLogger name="org.mule.extension.db" level="DEBUG"/>
<AsyncLogger name="org.mule.db.commons" level="DEBUG"/>
<!-- Mule logger -->
<AsyncLogger name="org.mule.runtime.core.internal.processor.LoggerMessageProcessor" level="INFO"/>
<AsyncRoot level="INFO">
<AppenderRef ref="file" level="INFO"/>
<AppenderRef ref="file_debug" level="TRACE"/>
</AsyncRoot>
</Loggers>
Please suggest if there is any option to overwrite the same file "file_debug" every hour?