Use erlef/setup-beam for GitHub Actions (#142)

Author: kianmeng

.github/workflows/mongodb_driver.yml

@@ -30,7 +30,7 @@ jobs:
         id: versions
 
       - name: Set up Elixir
-        uses: erlef/setup-elixir@v1
+        uses: erlef/setup-beam@v1
         with:
           elixir-version: ${{steps.versions.outputs.elixir}}
           otp-version: ${{ steps.versions.outputs.erlang}}