Fix MySQL CI (#612)

Author: greg-rychlewski

.github/workflows/ci.yml

@@ -52,7 +52,7 @@ jobs:
       fail-fast: false
       matrix:
         elixirbase:
-          - "1.11.4-erlang-21.3.8.24-alpine-3.13.3"
+          - "1.11.4-erlang-23.3.4.9-alpine-3.16.9"
         postgres:
           - "16.2-alpine"
           - "11.11-alpine"
@@ -71,7 +71,7 @@ jobs:
       fail-fast: false
       matrix:
         elixirbase:
-          - "1.11.4-erlang-21.3.8.24-alpine-3.13.3"
+          - "1.11.4-erlang-23.3.4.9-alpine-3.16.9"
         mysql:
           - "5.7"
           - "8.0"
@@ -88,7 +88,7 @@ jobs:
       fail-fast: false
       matrix:
         elixirbase:
-          - "1.11.4-erlang-21.3.8.24-alpine-3.13.3"
+          - "1.11.4-erlang-23.3.4.9-alpine-3.16.9"
         mssql:
           - "2017"
           - "2019"