switch back to melpa as a Cask source

from melpa-stable

update tree-sitter-langs to 0.10.7

Author: rolandwalker

Cask

@@ -1,4 +1,4 @@
 (source gnu)
-(source melpa-stable)
+(source melpa)
 
 (package-file "pygn-mode.el")

pygn-mode.el

@@ -7,7 +7,7 @@
 ;; URL: https://raw.githubusercontent.com/dwcoates/pygn-mode/master/pygn-mode.el
 ;; Version: 0.6.0
 ;; Last-Updated: 06 Aug 2021
-;; Package-Requires: ((emacs "26.1") (tree-sitter "0.15.2") (tree-sitter-langs "0.10.1") (uci-mode "0.5.4") (nav-flash "1.0.0") (ivy "0.10.0"))
+;; Package-Requires: ((emacs "26.1") (tree-sitter "0.15.2") (tree-sitter-langs "0.10.7") (uci-mode "0.5.4") (nav-flash "1.0.0") (ivy "0.10.0"))
 ;; Keywords: data, games, chess
 
 ;;; License