gnu: sbcl-next: Update inputs for 1.2.0.

* gnu/packages/web-browsers.scm (sbcl-next)[inputs]: Update for 1.2.0.

gnu/packages/web-browsers.scm

@@ -469,5 +469,6 @@ (define expected-fasl (string-append
        ("cl-css" ,sbcl-cl-css)
        ("bordeaux-threads" ,sbcl-bordeaux-threads)
        ("s-xml-rpc" ,sbcl-s-xml-rpc)
-       ("unix-opts" ,sbcl-unix-opts)))
+       ("unix-opts" ,sbcl-unix-opts)
+       ("trivial-clipboard" ,sbcl-trivial-clipboard)))
     (synopsis "Infinitely extensible web-browser (with Lisp development files)")))