fix(updater): critical typo in func copy_logrotate

wrong path used for variable "logrotatefile"

Signed-off-by: Stephan Wendel <me@stephanwe.de>

tools/update.sh

@@ -157,7 +157,7 @@ function copy_logrotate {
         template="${HOME}/crowsnest/file_templates/logrotate_webcamd"
         cp -rf "${template}" /tmp/webcamd
         sudo sed -i 's|pi|'"${BASE_USER}"'|g' /tmp/webcamd
-        logrotatefile="/tmp/logrotate_webcamd"
+        logrotatefile="/tmp/webcamd"
     else
         logrotatefile="${HOME}/crowsnest/file_templates/logrotate_webcamd"
     fi