chore: remove excoveralls

Just use `mix test --cover` instead.

.github/workflows/ci.yml

@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: ["master"]
+    branches: ["main"]
   pull_request:
-    branches: ["master"]
+    branches: ["main"]
 
 jobs:
   prettier:

README.md

@@ -47,7 +47,7 @@ iex> %YourModule{}[:key]
 
 ### Testing
 
-Unit tests can be run with `mix test` or `mix coveralls.html`.
+Unit tests can be run with `mix test`.
 
 ### Formatting
 
@@ -63,4 +63,4 @@ Git commit subjects use the [Karma style](http://karma-runner.github.io/5.0/dev/
 
 Copyright (c) 2017-2024 Codedge LLC (https://www.codedge.io/)
 
-This library is MIT licensed. See the [LICENSE](https://github.com/codedge-llc/accessible/blob/master/LICENSE.md) for details.
+This library is MIT licensed. See the [LICENSE](https://github.com/codedge-llc/accessible/blob/master/LICENSE) for details.

mix.exs

@@ -15,15 +15,8 @@ defmodule Accessible.Mixfile do
       elixirc_paths: elixirc_paths(Mix.env()),
       name: "Accessible",
       package: package(),
-      preferred_cli_env: [
-        coveralls: :test,
-        "coveralls.detail": :test,
-        "coveralls.post": :test,
-        "coveralls.html": :test
-      ],
       source_url: "https://github.com/codedge-llc/accessible",
       start_permanent: Mix.env() == :prod,
-      test_coverage: [tool: ExCoveralls],
       version: @version
     ]
   end
@@ -41,8 +34,6 @@ defmodule Accessible.Mixfile do
     [
       {:credo, "~> 1.0", only: [:dev, :test], runtime: false},
       {:dialyxir, "~> 1.0", only: [:dev], runtime: false},
-      {:earmark, "~> 1.0", only: :dev},
-      {:excoveralls, "~> 0.5", only: :test},
       {:ex_doc, ">= 0.0.0", only: :dev, runtime: false}
     ]
   end