Update tags in metadata

Author: dlozina

setup.cfg

@@ -6,7 +6,7 @@ author_email = [email protected]
 description = Python sdk for Infobip's API
 long_description = file: README.md
 long_description_content_type = text/markdown
-keywords = infobip, sdk, channels, whatsapp, api
+keywords = infobip, sdk, channels, whatsapp, webrtc, mms, api
 url = https://github.com/infobip-community/infobip-api-python-sdk
 project_urls =
     Bug Tracker = https://github.com/infobip-community/infobip-api-python-sdk/issues