Delete obsolete version in compose.yaml

The following warning appeared when starting devcontainer.

```
WARN[0000] /home/***/ghq/github.com/rails/rails/.devcontainer/compose.yaml: `version` is obsolete
WARN[0000] /tmp/devcontainercli-***/docker-compose/docker-compose.devcontainer.build-1720224621191.yml: `version` is obsolete
```

In fact, the top-level version element will be obsolete in the compose specification.
https://github.com/compose-spec/compose-spec/blob/master/spec.md#version-top-level-element-obsolete
This commit is contained in:
wonda-tea-coffee 2024-07-06 09:17:06 +09:00
parent 0d30e84878
commit fb69560bea

@ -1,5 +1,3 @@
version: '3'
services:
rails:
build: