Merge pull request actions#55 from tsloughter/erlang-rebar3

update Erlang workflow to rebar3

Author: jclem

ci/erlang.yml

@@ -8,11 +8,12 @@ jobs:
 
     runs-on: ubuntu-latest
 
+    container:
+      image: erlang:22.0.7
+
     steps:
     - uses: actions/checkout@v1
-    - name: Install dependencies
-      run: rebar get-deps
     - name: Compile
-      run: rebar compile
+      run: rebar3 compile
     - name: Run tests
-      run: rebar skip_deps=true eunit
+      run: rebar3 do eunit, ct