[chore]Editorconfig: ymlに加えてyamlファイルに対しても同じ規約を適用する (#10081)

* Added yaml file in addition to yml file, in editorconfig

* Applied editorconfig for pnpm-workspace.yaml

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Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

.editorconfig

@@ -7,5 +7,5 @@ charset = utf-8
 insert_final_newline = true
 end_of_line = lf
 
-[*.yml]
+[*.{yml,yaml}]
 indent_style = space

pnpm-workspace.yaml

 packages:
  - 'packages/backend'
  - 'packages/frontend'
- - 'packages/sw'
\ No newline at end of file
+ - 'packages/sw'