increase elixir and otp versions

Author: smoes

.github/workflows/main.yaml

@@ -25,8 +25,8 @@ jobs:
       # Specify the OTP and Elixir versions to use when building
       # and running the workflow steps.
       matrix:
-        otp: ['25.0.4'] 
-        elixir: ['1.13.0']
+        otp: ['27.2'] 
+        elixir: ['1.18.1']
     steps:
     # Step: Setup Elixir + Erlang image as the base.
     - name: Set up Elixir