Gitpod integration not working

[vanam]

Hi,
I came across this project and wanted to give it a try using Gitpod. There are several issues with integration:

1. Wrong ruby version (3.3.1 -> 3.3.4). This has an easy fix in gitpod.Dockerfile

- RUN _ruby_version=ruby-3.3.1 \
+ RUN _ruby_version=ruby-3.3.4 \

2. Wrong yarn version (1.22.22 -> 4.2.2). For this I had to manually uninstall yarn and let the setup script install the correct one. This needs to be moved to gitpod.Dockerfile

3. Wrong postgres version (12 -> 14). Gitpod uses version 12 in its gitpod/workspace-postgres image.
   I guess the solution is to use image workspace-base and install correct version on your own like in https://github.com/gitpod-io/workspace-images/blob/main/chunks/tool-postgresql/Dockerfile

Hope this report helps a bit.