Use erlef/setup-beam (#25)

Author: kianmeng

.github/workflows/main.yml

@@ -34,7 +34,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install OTP and Elixir
-        uses: erlef/setup-elixir@v1
+        uses: erlef/setup-beam@v1
         with:
           otp-version: ${{matrix.erlang}}
           elixir-version: ${{matrix.elixir}}