Update to Erlang 27.2 and refresh Hex packages.

[conradwt]

This PR supports the following features:

• update to Erlang 27.2

• update Hex packages

[github-actions]

Docker image tag(s) pushed:

ghcr.io/conradwt/zero-to-graphql-using-elixir:gha-12310384800
ghcr.io/conradwt/zero-to-graphql-using-elixir:pr-248 

Labels added to images:

org.opencontainers.image.created=2024-12-13T05:52:31.374Z
org.opencontainers.image.description=The purpose of this example is to provide details as to how one would go about using GraphQL with the Elixir Language.
org.opencontainers.image.licenses=MIT
org.opencontainers.image.revision=3c2a3e69476c57096bdbdb37c1a405632b23b42c
org.opencontainers.image.source=https://github.com/conradwt/zero-to-graphql-using-elixir
org.opencontainers.image.title=zero-to-graphql-using-elixir
org.opencontainers.image.url=https://github.com/conradwt/zero-to-graphql-using-elixir
org.opencontainers.image.version=gha-12310384800