gnu: gnome-online-accounts: Update to 3.20.0.

* gnu/packages/gnome.scm (gnome-online-accounts): Update to 3.20.0.

gnu/packages/gnome.scm

@@ -4076,7 +4076,7 @@ window manager.")
 (define-public gnome-online-accounts
   (package
     (name "gnome-online-accounts")
-    (version "3.18.1")
+    (version "3.20.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://gnome/sources/" name "/"
@@ -4084,7 +4084,7 @@ window manager.")
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1hn2fvkr1f4qh4gix03avnvk7pklvv5272ns8ws56v4kcq4nppkc"))))
+                "0q546q65ba537dbxqnvs27x6pvhvi394v43kihgw4pa59j8k70n9"))))
     (build-system glib-or-gtk-build-system)
     (native-inputs
      `(("glib:bin" ,glib "bin") ; for glib-compile-schemas, etc.