gopls: 0.15.0 -> 0.15.1, set meta.changelog (#292354)

Diff: https://github.com/golang/tools/compare/gopls/v0.15.0...gopls/v0.15.1
Changelog: https://github.com/golang/tools/releases/tag/gopls/v0.15.1

pkgs/development/tools/language-servers/gopls/default.nix

@@ -2,17 +2,17 @@
 
 buildGoModule rec {
   pname = "gopls";
-  version = "0.15.0";
+  version = "0.15.1";
 
   src = fetchFromGitHub {
     owner = "golang";
     repo = "tools";
     rev = "gopls/v${version}";
-    hash = "sha256-Ii3c7zqMC/CeSv6X7wSgUdCkVbP+bxDuUcqPKIeE3Is=";
+    hash = "sha256-GJ2zc5OgZXwEq12f0PyvgOOUd7cctUbFvdp095VQb9E=";
   };
 
   modRoot = "gopls";
-  vendorHash = "sha256-i6Pa2cMxf97LKVy6ZVyPvjAVbQHaF84RAO0dM/dgk/Y=";
+  vendorHash = "sha256-Xxik0t1BHQPqzrE3Oh3VhODn+IqIVa+TCNqQSnmbBM0=";
 
   doCheck = false;
 
@@ -22,6 +22,7 @@ buildGoModule rec {
   meta = with lib; {
     description = "Official language server for the Go language";
     homepage = "https://github.com/golang/tools/tree/master/gopls";
+    changelog = "https://github.com/golang/tools/releases/tag/${src.rev}";
     license = licenses.bsd3;
     maintainers = with maintainers; [ mic92 rski SuperSandro2000 zimbatm ];
     mainProgram = "gopls";