Don't run tests for windows and OTP 23

Author: warmwaffles

.github/workflows/ci.yml

@@ -53,6 +53,8 @@ jobs:
         exclude:
           - elixir: "1.12"
             otp: "25"
+          - os: "windows-2019"
+            otp: "23"
     steps:
       - uses: actions/checkout@v3
       - uses: erlef/setup-beam@v1