gqrx: 2.15.7 -> 2.15.8

pkgs/applications/radio/gqrx/default.nix

···
 
 gnuradio3_8Minimal.pkgs.mkDerivation rec {
   pname = "gqrx";
-  version = "2.15.7";
+  version = "2.15.8";
 
   src = fetchFromGitHub {
     owner = "gqrx-sdr";
     repo = "gqrx";
     rev = "v${version}";
-    sha256 = "sha256-4tXWwBkVmNZ4s3d6/n6XBdbh9Fv7821L3vkYmjgv1ds=";
+    sha256 = "sha256-RxwkiJdPHWyhU3azSpWV2M0tG5GInQBpc/ls16V1B94=";
   };
 
   nativeBuildInputs = [