In CI test against Elixir 1.16

Author: axelson

.github/workflows/ci.yml

@@ -20,8 +20,8 @@ jobs:
         include:
           - elixir: '1.11.4'
             otp: '24.2'
-          - elixir: '1.15.5'
-            otp: '26.0'
+          - elixir: '1.16.0'
+            otp: '26.2'
 
     steps:
     - uses: actions/checkout@v3