logrotate: Don't rotate wtmp and btmp on buster as it has its own config for that

logrotate/files/logrotate.conf

@@ -17,6 +17,7 @@ delaycompress
 # packages drop log rotation information into this directory
 include /etc/logrotate.d
 
+{%- if grains['osfinger'] != 'Debian-10' %}
 # no packages own wtmp, or btmp -- we'll rotate them here
 /var/log/wtmp {
     missingok
@@ -31,5 +32,6 @@ include /etc/logrotate.d
     create 0660 root utmp
     rotate 1
 }
+{%- endif %}
 
 # system-specific logs may be configured here