Update the badges in the README file

Author: Cito

Diff for: README.md

@@ -15,8 +15,11 @@ Since version 3, GraphQL-Relay-Py and GraphQL-Core support Python 3.6 and above
 For older versions of Python, you can use version 2 of these libraries.
 
 [![PyPI version](https://badge.fury.io/py/graphql-relay.svg)](https://badge.fury.io/py/graphql-relay)
-[![Build Status](https://travis-ci.org/graphql-python/graphql-relay-py.svg?branch=master)](https://travis-ci.org/graphql-python/graphql-relay-py)
-[![Coverage Status](https://coveralls.io/repos/graphql-python/graphql-relay-py/badge.svg?branch=master&service=github)](https://coveralls.io/github/graphql-python/graphql-relay-py?branch=master)
+![Test Status](https://github.com/graphql-python/graphql-relay-py/actions/workflows/test.yml/badge.svg)
+![Lint Status](https://github.com/graphql-python/graphql-relay-py/actions/workflows/lint.yml/badge.svg)
+[![Dependency Updates](https://pyup.io/repos/github/graphql-python/graphql-relay-py/shield.svg)](https://pyup.io/repos/github/graphql-python/graphql-relay-py/)
+[![Python 3 Status](https://pyup.io/repos/github/graphql-python/graphql-relay-py/python-3-shield.svg)](https://pyup.io/repos/github/graphql-python/graphql-relay-py/)
+[![Code Style](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/ambv/black)
 
 ## Getting Started