Use lowercase on UUID because of TagBot

Julia registry has this package with the lowercase
UUID. Since TagBot checks the UUID of the package
against the registry, it doesn't find it.

Closes #294

Project.toml

@@ -1,5 +1,5 @@
 name = "BestieTemplate"
-uuid = "E5D671A7-4186-4F1A-BF88-C19B630DA94F"
+uuid = "e5d671a7-4186-4f1a-bf88-c19b630da94f"
 authors = ["Abel Soares Siqueira <[email protected]> and contributors"]
 version = "0.7.1"