[v2] refresh docker compose scripts

[sebsto]

Expected behavior

refresh docker compose script to

• adjust to swift-format instead of swiftformat
• remove dependencies on external scripts that have been deleted (like soundness)
• remove Swift 5.7 ... 5.10 for v2 (maybe keep them for v1 examples ?)
• add swift 6 support & containers

Actual behavior

n/a

Steps to reproduce

n/a

If possible, minimal yet complete reproducer code (or URL to code)

No response

What version of this project (swift-aws-lambda-runtime) are you using?

1.0.0-alpha.3

Swift version

n/a

Amazon Linux 2 docker image version

No response

[sebsto]

docker files are not necessary anymore, we use github actions