fix: update devcontainer image (redlib-org#434)

[oeeq]

This PR fixes #434 by updating the devcontainer configuration to use the mcr.microsoft.com/devcontainers/rust:1.0.23-bookworm docker image.

[dethos]

Probably not related to this change single change, but with the overall dev container configuration, but when I try to run the project using cargo run while using the dev container, I keep getting:

ERROR redlib::oauth > Failed to create OAuth client before timeout. Retrying in 5 seconds...

Which doesn't happen if I don't use of the dev containers.

[oeeq]

@dethos that's weird, it works on my machine... do you have internet access inside the dev container?

[dethos]

@dethos that's weird, it works on my machine... do you have internet access inside the dev container?

 vscode ➜ /workspaces/redlib $ curl -I https://www.reddit.com
HTTP/2 200 
cache-control: private, s-maxage=1, max-age=1, must-revalidate
content-security-policy: child-src 'self' blob: accounts.google.com;connect-src 'self' ...
content-security-policy-report-only: object-src 'none';script-src ...
content-type: text/html; charset=utf-8
x-is-wrs: false
x-ratelimit-remaining: 197.0
...

It seems so. But if it works for you, it isn't related to this change. So please disregard my comment, I will debug further when I have some spare time.