Update author details

Author: erick-otenyo

setup.cfg

@@ -6,7 +6,7 @@ long_description = file:README.md
 long_description_content_type = text/markdown
 url = https://github.com/wmo-raf/forecastmanager
 author = Grace Amondi, Erick Otenyo
-author_email = miswa.grace@gmail.com, otenyo.erick.gmail.com
+author_email = miswa.grace@gmail.com, otenyo.erick@gmail.com
 license = MIT
 classifiers =
     Development Status :: 4 - Beta