gnu: emacs-pg: Update to 0.20.

* gnu/packages/emacs-xyz.scm (emacs-pg): Update to 0.20.

gnu/packages/emacs-xyz.scm

@@ -19653,7 +19653,7 @@ match and total match information in the mode-line in various search modes.")
 (define-public emacs-pg
   (package
     (name "emacs-pg")
-    (version "0.19")
+    (version "0.20")
     (source (origin
               (method git-fetch)
               (uri (git-reference (url "https://github.com/emarsden/pg-el")
@@ -19661,7 +19661,7 @@ match and total match information in the mode-line in various search modes.")
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "13fkkpimhxh91hmsp551wzrdcic5ws7wj7vjwnh8l83hsrxmxz0y"))))
+                "0a38rvl5rwfb77p4xxmjhrs6s67pfkzjfm0pdxvf0b6xh7h404kh"))))
     (build-system emacs-build-system)
     (home-page "https://github.com/emarsden/pg-el")
     (synopsis "Emacs Lisp interface for PostgreSQL")