community/texlive: texlive-most depends on cmd:biber

The meta package texlive-most should include biber, as it claims to be
a mostly complete TeX distribution. Using cmd:biber rather than
biber2.19 would allow installing biber and dropping biber2.19, if
texmf-dist-bibtexextra becomes compatible with the biber version in
biber.

community/texlive/APKBUILD

@@ -677,6 +677,7 @@ _subpkg_most() {
 		$pkgname-luatex
 		$pkgname-xetex
 		texmf-dist-most
+		cmd:biber
 		"
 
 	mkdir -p "$subpkgdir"