Runtime: Test Elixir 1.19.1, not 1.19.2 as it has a bug building app file

Relevant commit that will fix the problem in elixir 1.19.3:
elixir-lang/elixir@0126f1f

Author: badlop

.github/workflows/runtime.yml

@@ -118,7 +118,7 @@ jobs:
     runs-on: ubuntu-24.04-arm
     strategy:
       matrix:
-        elixir: ['1.14', '1.18', '1.19']
+        elixir: ['1.14', '1.18', '1.19.1']
     container:
       image: public.ecr.aws/docker/library/elixir:${{ matrix.elixir }}
 
@@ -196,7 +196,7 @@ jobs:
     runs-on: ubuntu-24.04-arm
     strategy:
       matrix:
-        elixir: ['1.14', '1.18', '1.19']
+        elixir: ['1.14', '1.18', '1.19.1']
     container:
       image: public.ecr.aws/docker/library/elixir:${{ matrix.elixir }}