regal: Update package source to from OPA org

Regal has been donated to the Open Policy Agent GitHub organization.
Update package to fetch from new upstream location and enable automatic updates
going forward.

For more info regarding the donation, please see:
https://blog.openpolicyagent.org/note-from-teemu-tim-and-torin-to-the-open-policy-agent-community-2dbbfe494371

pkgs/by-name/re/regal/package.nix

@@ -6,29 +6,32 @@
 
 buildGoModule rec {
   name = "regal";
-  version = "0.34.1";
+  version = "0.37.0";
 
   src = fetchFromGitHub {
-    owner = "StyraInc";
+    owner = "open-policy-agent";
     repo = "regal";
     rev = "v${version}";
-    hash = "sha256-gdoQ+u9YbwTq28b3gYsNA0SxYFigeKK2JUd0paz8WYQ=";
+    hash = "sha256-zAp4v1bKz+q+29jlhEccl7o9RWLA+Hn3Kp/UGBQlmA8=";
   };
 
-  vendorHash = "sha256-FycDMCfvpUkW7KcTLMUBOjbU4JnKCJrWQalNKSY1RkM=";
+  vendorHash = "sha256-yvUvv8EL3WrsyBnzaGQK4DR+O5Ner9ehkZYCMnfRwRU=";
+
+  # Only build the main binary, exclude build/lsp/main.go
+  subPackages = [ "." ];
 
   ldflags = [
     "-s"
     "-w"
-    "-X github.com/styrainc/regal/pkg/version.Version=${version}"
-    "-X github.com/styrainc/regal/pkg/version.Commit=${version}"
+    "-X github.com/open-policy-agent/regal/pkg/version.Version=${version}"
+    "-X github.com/open-policy-agent/regal/pkg/version.Commit=${version}"
   ];
 
   meta = {
     description = "Linter and language server for Rego";
     mainProgram = "regal";
-    homepage = "https://github.com/StyraInc/regal";
-    changelog = "https://github.com/StyraInc/regal/releases/tag/${src.rev}";
+    homepage = "https://github.com/open-policy-agent/regal";
+    changelog = "https://github.com/open-policy-agent/regal/releases/tag/${src.rev}";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ rinx ];
   };