honeycomb-refinery: fix homepage

pkgs/servers/tracing/honeycomb/refinery/default.nix

···
   doCheck = true;
 
   meta = with lib; {
-    homepage = "https://github.com/honeycomb/refinery";
+    homepage = "https://github.com/honeycombio/refinery";
     description = "A tail-sampling proxy for OpenTelemetry";
     license = licenses.asl20;
     maintainers = with maintainers; [ lf- ];