Remove OTP 23 from CI

wojtekmach · wojtekmach · commit db6370d80f37 · 2021-08-30T12:57:59.000+02:00
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -18,9 +18,6 @@ jobs:
           - pair:
               elixir: "1.10"
               otp: 21
-          - pair:
-              elixir: "1.11"
-              otp: 23
           - pair:
               elixir: "1.12"
               otp: 24
