x11/foot: regen termcap workaround

"foot" is generated by "infocmp -Cu foot xterm-256color" but before
0d7758a45b84 bundled up-to-date database was used as a reference, so
some capabilities were missing (bug 247447).

(cherry picked from commit c61320529d246baf4c340e0ba75c65dae566b10d)