ngtcp2: add meta.changelog, modernize (#400623)

pkgs/development/libraries/ngtcp2/default.nix

···
   curlHTTP3,
 }:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation (finalAttrs: {
   pname = "ngtcp2";
   version = "1.12.0";
 
   src = fetchFromGitHub {
     owner = "ngtcp2";
-    repo = pname;
-    rev = "v${version}";
+    repo = "ngtcp2";
+    # must match version usage in meta.changelog
+    tag = "v${finalAttrs.version}";
     hash = "sha256-mfgWtyYhAJB8kvQVNCuSHx4Nz1Th5STMlorCB2xO7OQ=";
     fetchSubmodules = true;
   };
···
     inherit curlHTTP3;
   };
 
-  meta = with lib; {
+  meta = {
     homepage = "https://github.com/ngtcp2/ngtcp2";
-    description = "ngtcp2 project is an effort to implement QUIC protocol which is now being discussed in IETF QUICWG for its standardization";
-    license = licenses.mit;
-    platforms = platforms.unix;
-    maintainers = with maintainers; [ izorkin ];
+    changelog = "https://github.com/ngtcp2/ngtcp2/releases/tag/v${finalAttrs.version}";
+    description = "Implementation of the QUIC protocol (RFC9000)";
+    license = lib.licenses.mit;
+    platforms = lib.platforms.unix;
+    maintainers = with lib.maintainers; [ izorkin ];
   };
-}
+})