Bump version to 4.7.1-stable \o/

See the release page for details: https://godotengine.org/article/maintenance-release-godot-4-7-1/

version.py

@@ -3,7 +3,7 @@ name = "Godot Engine"
 major = 4
 minor = 7
 patch = 1
-status = "rc"
+status = "stable"
 module_config = ""
 website = "https://godotengine.org"
 docs = "4.7"