feat(deps): Make @Omikhleia's ptable package available by default

It seems like I use this on most of my projects these days. Now that
silex (which it depends on, so becomes a transitive dependency here too)
doesn't hijack SILE's namespace by default, there isn't any reason not
to provide this out of the box. So instead of having them have to
install it in their own Docker images or Lua Rockspec, lets just bundle
it by default.

Author: alerque

configure.ac

@@ -105,6 +105,7 @@ AM_COND_IF([DEPENDENCY_CHECKS], [
     AX_LUAROCKS_ROCK(yaml)
 
     AX_LUAROCKS_ROCK(decasify.sile)
+    AX_LUAROCKS_ROCK(ptable.sile)
 
     AC_PATH_PROG([PERL], [perl])
     AX_PROG_PERL_VERSION([5], [], AC_MSG_ERROR([perl interpreter is required]))

hooks/build

@@ -8,7 +8,7 @@ REVISION=$(git describe --long --tags | sed 's/^v//;s/\([^-]*-g\)/r\1/;s/-/./g')
 RUNTIME_DEPS='bc bcprov curl decasify entr epubcheck fontconfig ghostscript git git-warp-time imagemagick inetutils sudo'\
 ' inkscape java-commons-lang jq kindlegen libertinus-font libgit2 m4 make mdbook moreutils nodejs'\
 ' pandoc-sile-git parallel pcre pdftk podofo-tools poppler povray ripgrep sassc sile sqlite'\
-' sile-decasify'\
+' sile-decasify sile-ptable'\
 ' texlive-binextra texlive-xetex texlive-formatsextra texlive-latexextra texlive-langenglish texlive-langother texlive-langcyrillic'\
 ' tex-gyre-fonts ttf-hack yq zint zola zsh'\
 ' lua lua-yaml lua-decasify'\