rubyPackages.gtk3: fix build, add missing dependencies

Changed files
+8
pkgs
development
ruby-modules
gem-config
+8
pkgs/development/ruby-modules/gem-config/default.nix
···
tzdata,
icu,
libffi,
+
libdeflate,
+
xz,
+
zstd,
+
libwebp,
cmake,
libssh2,
openssl,
···
fribidi
gobject-introspection
gtk3
+
libdeflate
+
xz
+
libwebp
+
zstd
cairo
harfbuzz
lerc