gnu: emacs-magit-gerrit: Update to 0.4.

* gnu/packages/emacs-xyz.scm (emacs-magit-gerrit): Update to 0.4.

gnu/packages/emacs-xyz.scm

@@ -19062,21 +19062,18 @@ time is being spent during Emacs startup in order to optimize startup time.")
     (license license:gpl3+)))
 
 (define-public emacs-magit-gerrit
-  (let ((version "0.3")
-        (revision "1")
-        (commit "ece6f369694aca17f3ac166ed2801b432acfe20d"))
   (package
     (name "emacs-magit-gerrit")
-      (version (git-version version revision commit))
-      (source (origin
+    (version "0.4")
+    (source
+     (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/terranpro/magit-gerrit")
-                      (commit commit)))
+             (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-                 (base32
-                  "0mms0gxv9a3ns8lk5k2wjibm3088y1cmpr3axjdh6ppv7r5wdvii"))))
+        (base32 "1q4kcr2ha2kir7pj0cshmgllgq51543syxkkk5jk3ksfiaba4crj"))))
     (build-system emacs-build-system)
     (propagated-inputs
      `(("emacs-magit" ,emacs-magit)))
@@ -19085,7 +19082,7 @@ time is being spent during Emacs startup in order to optimize startup time.")
     (description "This Magit extension provides integration with Gerrit,
 which makes it possible to conduct Gerrit code reviews directly from within
 Emacs.")
-      (license license:gpl3+))))
+    (license license:gpl3+)))
 
 (define-public emacs-magit-org-todos-el
   (package