monit: 5.10 -> 5.19.0

monit disables SSLv23 now by default, see

- https://mmonit.com/monit/changes/
- https://lwn.net/Vulnerabilities/691497/

pkgs/tools/system/monit/default.nix

@@ -1,11 +1,11 @@
 {stdenv, fetchurl, openssl, bison, flex, pam, usePAM ? stdenv.isLinux }:
 
 stdenv.mkDerivation rec {
-  name = "monit-5.10";
-  
+  name = "monit-5.19.0";
+
   src = fetchurl {
     url = "${meta.homepage}dist/${name}.tar.gz";
-    sha256 = "0lwlils6b59kr6zg328q113c7mrpggqydpq4l6j52sqv3dd1b49p";
+    sha256 = "1f32dz7zzp575d35m8xkgjgrqs2vbls0q6vdzm7wwashcm1xbz5y";
   };
 
   nativeBuildInputs = [ bison flex ];