Sticky Tomcat Cache Warnings still occur on latest XWiki version

It seems at some point user can get a warning message in Tomcat catalina.out file or not.

The background cache eviction process was unable to free [10] percent of the cache for Context [....] - consider increasing the maximum size of the cache. After eviction approximately [...] KB of data remained in the cache.

According to official Tomcat documentation, the value cacheMaxSize has to be changed.

Lastly, the value was updated to `cacheMaxSize="20480"` in commit for XWIKI-17166.

Currently, this value isn't enough in order to get rid of the message, we need to find the desired value to which we can increase it.