Update GitHub actions

Author: rrrene

.github/workflows/ci-workflow.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        otp: [24.3, 25.3, 26.2, 27.0]
+        otp: [24.3, 25.3, 26.2]
         elixir: [1.13.4, 1.14.5, 1.15.7, 1.16.2, 1.17.0-rc.0]
         exclude:
           - elixir: 1.13.4