Add docker-compose.yaml highlight as docker file

[MaxymVlasov]

In https://docs.docker.com/compose/compose-file/#service-configuration-reference you can find next:

Tip: You can use either a .yml or .yaml extension for this file. They both work.

Because many of developers use .yaml extension instead .yml, it's good idea add highlight for both variant.

P.S. I was redirected to you repo from https://github.com/Microsoft/vscode/pull/32414

[MaxymVlasov]

@jesseweed