conky: skip invalid conky errors

[lasers]

Skip possibly invalid errors coming from upstream soon https://github.com/brndnmtthws/conky/pull/1841/files#diff-1b23d253ee325539fdcd0f4f4b6f6bb6fc04836b3d9942bcca869d5ed5b2ce2fR82-R90 such as...

conky: FOUND: console
conky: FOUND: ncurses
conky: FOUND: file
conky: FOUND: http
conky: FOUND: x11
conky: FOUND: wayland

This PR is untested. First reported by Casper The Friendly Ghost. Thanks ~~Casper~~ Su. :ghost: