update ci to use erlang foundation version (#494)

* update ci to use erlang foundation version

* Apply suggestions from code review

Co-authored-by: Łukasz Samson <lukaszsamson@gmail.com>

Author: princemaple

.github/workflows/ci.yml

@@ -41,7 +41,7 @@ jobs:
       MIX_ENV: test
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-elixir@v1
+      - uses: erlef/setup-elixir@v1
         with:
           otp-version: ${{matrix.otp}}
           elixir-version: ${{matrix.elixir}}
@@ -66,7 +66,7 @@ jobs:
             otp: 23.2.x
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-elixir@v1
+      - uses: erlef/setup-elixir@v1
         with:
           otp-version: ${{matrix.otp}}
           elixir-version: ${{matrix.elixir}}

.github/workflows/release-asset.yml

@@ -45,7 +45,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Set up Elixir
-        uses: actions/setup-elixir@v1
+        uses: erlef/setup-elixir@v1
         with:
           elixir-version: ${{ matrix.elixir-version }}
           otp-version: ${{ matrix.otp-version }}