AL2023 install issues

Hi, I was facing some installation issues for the build step in the readme, so I though I share my updates:

my steps ended up looking like this
```
sudo yum install git -y
sudo yum install ruby -y
sudo yum install gcc -y
gem install bundler
sudo gem update --system 3.6.9
git clone https://github.com/aws/aws-codedeploy-agent.git
cd aws-codedeploy-agent
bundle install
```
after that I got stuck on
`bin/codedeploy-agent start`
with
`error: The config file /opt/codedeploy-agent/conf/codedeployagent.yml does not exist or is not readable`

switching to the downloadable now, but thought this could be useful for others