change skyd logrotate config to use "copytruncate"
"copytruncate" means that log file will be copied first and then original will be truncated
previous option "create" renames an original file and creates a new empty file instead but it was ineffective because skyd would keep file handle after renaming and still write to the rotated file until its restarted
no "delaycompress" since the new file can be compressed right away
decreased the amount of log data we want to keep for skyd
add new pinner logrotate config (uses "copytruncate" as well)