Remove bullshit COC and setup github actions

Author: coorasse

.github/workflows/ci.yml

@@ -0,0 +1,23 @@
+name: CI
+
+on:
+  push:
+
+jobs:
+  lint:
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.4
+          bundler-cache: true
+
+      - name: Setup env variables
+        run: cp .example.env .env
+
+      - name: Tests
+        run: bin/check

.travis.yml

@@ -7,9 +7,6 @@
 Ruby library to invoke Heroku Postgres APIs.
 An extension to the official [Platform API](https://github.com/heroku/platform-api) gem to introduce the missing APIs for Postgres.
 
-[![Build Status](https://travis-ci.org/coorasse/heroku-api-postgres.svg?branch=master)](https://travis-ci.org/coorasse/heroku-api-postgres)
-[![Maintainability](https://api.codeclimate.com/v1/badges/4eead5d8263c37498953/maintainability)](https://codeclimate.com/github/coorasse/heroku-api-postgres/maintainability)
-
 **This gem is not officialy supported**. We use the same APIs that the offical Heroku Toolbelt uses,
 therefore is unrealistic that a breaking change in the APIs would break it, since it means it would break
 both this gem and the official Heroku CLI.
@@ -209,14 +206,7 @@ and push the `.gem` file to [rubygems.org](https://rubygems.org).
 ## Contributing
 
 Bug reports and pull requests are welcome on GitHub at https://github.com/coorasse/heroku-api-postgres.
-This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to
-the [Contributor Covenant](http://contributor-covenant.org) code of conduct.
 
 ## License
 
 The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
-
-## Code of Conduct
-
-Everyone interacting in the `Heroku::Api::Postgres` project’s codebases, issue trackers, chat rooms and mailing lists is
-expected to follow the [code of conduct](https://github.com/coorasse/heroku-api-postgres/blob/master/CODE_OF_CONDUCT.md).