gnu: emacs-org-roam: Update to 2.2.2-0.74422df.

Due to the bug in release version, backlinks doesn't work:
https://github.com/org-roam/org-roam/issues/2235

Two weeks ago it was a request for a new tag, but still not added.
https://github.com/org-roam/org-roam/issues/2306

* gnu/packages/emacs-xyz.scm (emacs-org-roam): Update to 2.2.2-0.74422df.

gnu/packages/emacs-xyz.scm

@@ -33244,18 +33244,20 @@ go directly to where they belong.")
       (license license:gpl3+))))
 
 (define-public emacs-org-roam
+  (let ((commit "74422df546a515bc984c2f3d3a681c09d6f43916")
+        (revision "0"))
     (package
       (name "emacs-org-roam")
-    (version "2.2.2")
+      (version (git-version "2.2.2" revision commit))
       (source
        (origin
          (method git-fetch)
          (uri (git-reference
                (url "https://github.com/org-roam/org-roam")
-             (commit (string-append "v" version))))
+               (commit commit)))
          (file-name (git-file-name name version))
          (sha256
-        (base32 "09wcqdqy2gcsyd1mbcm90b70y3qj921m4ky8l3avhzpdwgyw8wy5"))))
+          (base32 "0vhl69y6yk2zzfixjdwr8vxl2k921h0syshk5123r1nm9jp3i1s9"))))
       (build-system emacs-build-system)
       (arguments
        (list
@@ -33303,7 +33305,7 @@ notes with Org mode.  Notes are captured without hierarchy and are connected
 by tags.  Notes can be found and created quickly.  Org Roam should also work
 as a plug-and-play solution for anyone already using Org mode for their
 personal wiki.")
-    (license license:gpl3+)))
+      (license license:gpl3+))))
 
 (define-public emacs-org-roam-bibtex
   (package