chore: bump erlang 24 github ci version

Author: Thomas Timmer

.github/workflows/elixir.yml

@@ -12,7 +12,7 @@ jobs:
     name: OTP ${{matrix.otp}} / Elixir ${{matrix.elixir}}
     strategy:
       matrix:
-        otp: ["24.2", "25.3", "26.2"]
+        otp: ["24.3", "25.3", "26.2"]
         elixir: ["1.14.5", "1.15.6", "1.16.1"]
         include:
           - otp: "27.2"