Update the list of LaTeX packages (#461)

Co-authored-by: yihui <[email protected]>

Author: github-actions[bot]

tools/pkgs-custom.txt

@@ -22,6 +22,7 @@ etex
 etexcmds
 etoolbox
 euenc
+extractbb
 fancyvrb
 filehook
 firstaid

tools/pkgs-yihui.txt

@@ -139,8 +139,8 @@ symbol
 tabto-ltx
 tabu
 tcolorbox
-texcount
 tex-gyre
+texcount
 textcase
 thmtools
 threeparttable
@@ -164,8 +164,8 @@ vruler
 wallpaper
 wrapfig
 xargs
-xpatch
 xltxtra
+xpatch
 xstring
 xwatermark
 xypic