gnu: linux-pam: Update to 1.3.1.

* gnu/packages/linux.scm (linux-pam): Update to 1.3.1.
[source]: Update upstream URI.

gnu/packages/linux.scm

@@ -467,16 +467,16 @@ It has been modified to remove all non-free binary blobs.")
 (define-public linux-pam
   (package
     (name "linux-pam")
-    (version "1.3.0")
+    (version "1.3.1")
     (source
      (origin
        (method url-fetch)
        (uri (string-append
-            "http://www.linux-pam.org/library/"
-            "Linux-PAM-" version ".tar.bz2"))
+             "https://github.com/linux-pam/linux-pam/releases/download/v"
+             version "/Linux-PAM-" version ".tar.xz"))
        (sha256
         (base32
-        "1fyi04d5nsh8ivd0rn2y0z83ylgc0licz7kifbb6xxi2ylgfs6i4"))
+         "1nyh9kdi3knhxcbv5v4snya0g3gff0m671lnvqcbygw3rm77mx7g"))
        (patches (search-patches "linux-pam-no-setfsuid.patch"))))
 
     (build-system gnu-build-system)