Update badge in Readme

Author: elacuesta

README.md

@@ -1,7 +1,7 @@
 # Playwright integration for Scrapy
 [![version](https://img.shields.io/pypi/v/scrapy-playwright.svg)](https://pypi.python.org/pypi/scrapy-playwright)
 [![pyversions](https://img.shields.io/pypi/pyversions/scrapy-playwright.svg)](https://pypi.python.org/pypi/scrapy-playwright)
-[![actions](https://github.com/scrapy-plugins/scrapy-playwright/workflows/Build/badge.svg)](https://github.com/scrapy-plugins/scrapy-playwright/actions)
+[![Tests](https://github.com/scrapy-plugins/scrapy-playwright/actions/workflows/tests.yml/badge.svg)](https://github.com/scrapy-plugins/scrapy-playwright/actions/workflows/tests.yml)
 [![codecov](https://codecov.io/gh/scrapy-plugins/scrapy-playwright/branch/master/graph/badge.svg)](https://codecov.io/gh/scrapy-plugins/scrapy-playwright)