thermald: 1.7.2 -> 1.8

Semi-automatic update generated by
https://github.com/ryantm/nixpkgs-update tools. This update was made
based on information from
https://repology.org/metapackage/thermald/versions

pkgs/tools/system/thermald/default.nix

···
 
 stdenv.mkDerivation rec {
   name = "thermald-${version}";
-  version = "1.7.2";
+  version = "1.8";
 
   src = fetchFromGitHub {
     owner = "01org";
     repo = "thermal_daemon";
     rev = "v${version}";
-    sha256 = "1cs2pq8xvfnsvrhg2bxawk4kn3z1qmfrnpnhs178pvfbglzh15hc";
+    sha256 = "1g1l7k8yxj8bl1ysdx8v6anv1s7xk9j072y44gwki70dy48n7j92";
   };
 
   nativeBuildInputs = [ pkgconfig ];