Support formatting github-actions-workflow language (yaml)

[jgoux]

Is your feature request related to a problem? Please describe.

When using the https://marketplace.visualstudio.com/items?itemName=GitHub.vscode-github-actions extension and editing GitHub workflows files, Deno isn't formatting the yml files because the extension has its own language github-actions-workflow.

Describe the solution you'd like

Include the "github-actions-workflow" as a target language to format, similar to this PR: https://github.com/bluebrown/vscode-extension-yamlfmt/pull/9/files

[vicary]

Since Deno already formats yaml, it feels like trivial work.

diff --git a/client/src/extension.ts b/client/src/extension.ts
--- client/src/extension.ts
+++ client/src/extension.ts
@@ -94,8 +94,9 @@
       { scheme: "file", language: "scss" },
       { scheme: "file", language: "sass" },
       { scheme: "file", language: "less" },
       { scheme: "file", language: "yaml" },
+      { scheme: "file", language: "github-actions-workflow" },
       { scheme: "file", language: "sql" },
       { scheme: "file", language: "svelte" },
       { scheme: "file", language: "vue" },
       { scheme: "file", language: "astro" },
@@ -113,8 +114,9 @@
       { scheme: "untitled", language: "scss" },
       { scheme: "untitled", language: "sass" },
       { scheme: "untitled", language: "less" },
       { scheme: "untitled", language: "yaml" },
+      { scheme: "untitled", language: "github-actions-workflow" },
       { scheme: "untitled", language: "sql" },
       { scheme: "untitled", language: "svelte" },
       { scheme: "untitled", language: "vue" },
       { scheme: "untitled", language: "astro" },
@@ -132,8 +134,9 @@
       { scheme: "deno", language: "scss" },
       { scheme: "deno", language: "sass" },
       { scheme: "deno", language: "less" },
       { scheme: "deno", language: "yaml" },
+      { scheme: "deno", language: "github-actions-workflow" },
       { scheme: "deno", language: "sql" },
       { scheme: "deno", language: "svelte" },
       { scheme: "deno", language: "vue" },
       { scheme: "deno", language: "astro" },

[harrysolovay]

Format Document (forced) works. Otherwise does not. Would be great to be able to specify the deno formatter within vscode settings and have it respected.

"[github-actions-workflow]": {
  "editor.defaultFormatter": "denoland.vscode-deno"
}