gnu: kjumpingcube: Update to 25.04.0.

* gnu/packages/kde-games.scm (kjumpingcube): Update to 25.04.0.
[inputs]: Add kiconthemes.

Change-Id: I0f2fd332defe8d23854a9554b17b52feaaa35f7c

gnu/packages/kde-games.scm

@@ -1592,14 +1592,14 @@ This package is part of the KDE games module.")
 (define-public kjumpingcube
   (package
     (name "kjumpingcube")
-    (version "24.12.3")
+    (version "25.04.0")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "mirror://kde/stable/release-service/" version
                            "/src/kjumpingcube-" version ".tar.xz"))
        (sha256
-        (base32 "00szzbrapg4h9fy66wi8fmz5in06lzqm2g2zcakiijhfd631aj22"))))
+        (base32 "058sbbx73kbm2ils6ay0g3n9q05lid8aixl81i0246cgi2kvwvwy"))))
     (build-system qt-build-system)
     (arguments (list #:qtbase qtbase))
     (native-inputs
@@ -1611,6 +1611,7 @@ This package is part of the KDE games module.")
            kcrash
            kdbusaddons
            ki18n
+           kiconthemes
            kio
            kwidgetsaddons
            kxmlgui