protobuf: 28.2 -> 28.3

Diff: https://github.com/protocolbuffers/protobuf/compare/v28.2...v28.3

Changelog:
https://github.com/protocolbuffers/protobuf/releases/tag/v28.3

pkgs/development/libraries/protobuf/28.nix

···
 
 callPackage ./generic.nix (
   {
-    version = "28.2";
-    hash = "sha256-+ogjfmsbPUhqETJyHxoc1gYW/7a/JMc5l1gb/7WDqLE=";
+    version = "28.3";
+    hash = "sha256-+bb5RxITzxuX50ItmpQhWEG1kMfvlizWTMJJzwlhhYM=";
   }
   // args
 )