Manually add OS to test name

Author: jgarber623-cargosense

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ on:
 
 jobs:
   test:
-    name: Elixir ${{ matrix.pair.elixir }} OTP ${{ matrix.pair.otp }} (${{ matrix.os }})
+    name: Elixir ${{ matrix.pair.elixir }} OTP ${{ matrix.pair.otp }} (ubuntu-latest)
     runs-on: ubuntu-latest
     env:
       MIX_ENV: test