message: corrected the log filename and the path where its generated to be consistent with the rest of Hygieia collectors
diff: <appender name="ROLLING" class="ch.qos.logback.core.rolling.RollingFileAppender">
  <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
  <!-- rollover daily -->
  - <fileNamePattern>Gitlab-git-collector-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
  + <fileNamePattern>logs/gitlab-git-collector-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
  <timeBasedFileNamingAndTriggeringPolicy
  class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
  <!-- or whenever the file size reaches 100MB -->
  