drop Python 3.8 changelog

CHANGELOG.md

@@ -8,6 +8,7 @@
 * Improve: [auth] htpasswd: module 'bcrypt' is no longer mandatory in case digest method not used in file
 * Improve: [auth] successful/failed login logs now type and whether result was taken from cache
 * Improve: [auth] constant execution time for failed logins independent of external backend or by htpasswd used digest method
+* Drop: support for Python 3.8
 
 ## 3.3.3
 * Add: display mtime_ns precision of storage folder with condition warning if too less