chore: update license copyright and add cursor to gitignore (#1630)

Signed-off-by: Jonathan Norris <jonathan@taplytics.com>

Author: jonathannorris

.gitignore

@@ -7,6 +7,7 @@ build
 specification.json
 target
 .DS_Store
+.cursor/
 
 # vscode stuff
 .vscode/

LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright [yyyy] [name of copyright owner]
+   Copyright OpenFeature Maintainers
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.