gnu: emacs-docker: Update to 1.4.0.

* gnu/packages/emacs-xyz.scm (emacs-docker): Update to 1.4.0.

gnu/packages/emacs-xyz.scm

@@ -23539,16 +23539,16 @@ constant expressions.")
 (define-public emacs-docker
   (package
     (name "emacs-docker")
-    (version "1.3.0")
-    (source (origin
-              (method git-fetch)
-              (uri (git-reference
-                    (url "https://github.com/Silex/docker.el")
-                    (commit version)))
-              (file-name (git-file-name name version))
-              (sha256
-               (base32
-                "1g8r1faqp0z0vqp9qrl8m84pa0v2ddvc91klphdkfmldwv7rfipw"))))
+    (version "1.4.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/Silex/docker.el")
+             (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0s57dq04d97dvrbxzicyk5z9f1mn8gf9w4nbgrxd9dnjqz335173"))))
     (inputs
      `(("emacs-undercover" ,emacs-undercover)))
     (propagated-inputs