Changing from heroku-18 to Heroku-22

app.json

@@ -1,7 +1,7 @@
 {
   "name": "Papercups",
   "description": "An open source customer chat messaging service",
-  "repository": "https://github.com/papercups-io/papercups",
+  "repository": "https://github.com/kwamena98/papercups",
   "keywords": ["elixir", "phoenix", "chat"],
   "env": {
     "SECRET_KEY_BASE": {
@@ -51,7 +51,7 @@
   "scripts": {
     "postdeploy": "POOL_SIZE=2 mix ecto.migrate"
   },
-  "stack": "heroku-18",
+  "stack": "heroku-22",
   "buildpacks": [
     {
       "url": "https://buildpack-registry.s3.amazonaws.com/buildpacks/hashnuke/elixir.tgz"

elixir_buildpack.config

@@ -1,7 +1,31 @@
-# Elixir version
-elixir_version=1.11.3
+stack=heroku-22
 
 # Erlang version
-# available versions https://github.com/HashNuke/heroku-buildpack-elixir-otp-builds/blob/master/otp-versions
-erlang_version=23.0.2
+erlang_version=24.0
+
+
+# Elixir version
+elixir_version=1.2.0
+
+# Always rebuild from scratch on every deploy?
+always_rebuild=false
+
+# Create a release using `mix release`? (requires Elixir 1.9)
+release=true
+
+# A command to run right before fetching dependencies
+hook_pre_fetch_dependencies="pwd"
+
+# A command to run right before compiling the app (after elixir, .etc)
+hook_pre_compile="pwd"
+
+hook_compile="mix compile --force --warnings-as-errors"
+
+# A command to run right after compiling the app
+hook_post_compile="pwd"
+
+# Set the path the app is run from
+runtime_path=/app
 
+# Enable or disable additional test arguments
+test_args="--cover"