Fix builds; correct license attribution

Author: pcisar

python/LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018-present Pavel Cisar
+Copyright (c) 2018-present The Firebird Project (www.firebirdsql.org)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

python/pyproject.toml

@@ -46,5 +46,8 @@ Source = "https://github.com/FirebirdSQL/Butler/python"
 [tool.hatch.version]
 path = "src/firebird/butler/__about__.py"
 
-[tool.hatch.build]
+[tool.hatch.build.targets.sdist]
+include = ["src"]
+
+[tool.hatch.build.targets.wheel]
 packages = ["src/firebird"]