gnu: htop: Update source URI.

* gnu/packages/admin.scm (htop): Update source URI.

gnu/packages/admin.scm

@@ -104,7 +104,7 @@ (define-public htop
    (version "1.0.3")
    (source (origin
             (method url-fetch)
-            (uri (string-append "http://hisham.hm/htop/"
+            (uri (string-append "http://hisham.hm/htop/releases/"
                   version "/htop-" version ".tar.gz"))
             (sha256
              (base32