gnu: keurocalc: Update to 1.3.0-2.c6e8385.

* gnu/packages/kde-utils.scm (keurocalc): Update to 1.3.0-2.c6e8385.
[arguments]: Set #:qtbase to qtbase.

Change-Id: I5cc51c6a478251e2fd2d9b1b660d5f5f3455933c

gnu/packages/kde-utils.scm

@@ -561,8 +561,8 @@ shell scripts.")
     (license license:gpl2+)))
 
 (define-public keurocalc
-  (let ((commit "a760d8a7e58b36eb72d15e847f96599c93785194") ; just one release
-        (revision "1"))
+  (let ((commit "c6e83859624de10210ad6b839c473dd8ea7a0e83") ; just one release
+        (revision "2"))
     (package
       (name "keurocalc")
       (version (git-version "1.3.0" revision commit))
@@ -574,7 +574,7 @@ shell scripts.")
                 (file-name (git-file-name name version))
                 (sha256
                  (base32
-                  "0gh5vwl38hwf1405c980j1fj06g5c52am140lf4mxhrjvnmry7kd"))))
+                  "040x28lnirwply5ph5xz3jcmx7c10qifmwcjgvqymlgqhcfkda0r"))))
       (build-system qt-build-system)
       (native-inputs (list extra-cmake-modules kdoctools))
       (inputs (list kconfig
@@ -584,6 +584,7 @@ shell scripts.")
                     kio
                     kwidgetsaddons
                     kxmlgui))
+      (arguments (list #:qtbase qtbase))
       (home-page "https://invent.kde.org/utilities/keurocalc")
       (synopsis "Currency conversion tool")
       (description "This package provides a utility to handle currency