docs(README): add CI status and dependabot icons

Closes #928

Author: char0n

README.md

@@ -6,6 +6,9 @@
 
 # ApiDOM
 
+[![Build Status](https://github.com/swagger-api/apidom/actions/workflows/build.yml/badge.svg)](https://github.com/swagger-api/apidom/actions)
+[![Dependabot enabled](https://badgen.net/badge/icon/dependabot?icon=dependabot&label)](https://docs.github.com/en/code-security/supply-chain-security/keeping-your-dependencies-updated-automatically)
+
 The purpose of ApiDOM is to provide a single, unifying structure for describing APIs across
 API description language and serialization formats. There currently exists several API description languages one can choose
 when defining an API, from OpenAPI, RAML or API Blueprint.