Having `tasks` as folder suffix in hierarchy causes Incorrect Type error

[JakeHendy]

If you have a folder (anywhere in the hierarchy of the file) suffixed with tasks then you get Incorrect type. Expected "array"..

Examples:

foo
|- foo.yaml (fine)
|- tasks.yaml (fine)
|- tasks
  |- foo.yaml (Incorrect type)
|- tasks-test
  |- foo.yaml (fine)
|- test-tasks
  |- foo.yaml (Incorrect type)
  |- subdir
    |- foo.yaml (Incorrect type)
|- subdir
  |- tasks
    |- foo.yaml (Incorrect type)
  |- tasks.yaml (fine)

The files must have something in; I've been testing with AWSTemplateFormatVersion: "2010-09-09"

Error copied from VS Problems pane

{
	"resource": "/c:/jake.hendy/dev/tasks/task.yaml",
	"owner": "_generated_diagnostic_collection_name_#0",
	"severity": 8,
	"message": "Incorrect type. Expected \"array\".",
	"startLineNumber": 1,
	"startColumn": 1,
	"endLineNumber": 15,
	"endColumn": 1
}

Result from langauge server:

Params: {
    "textDocument": {
        "uri": "file:///c%3A/jake.hendy/dev/tasks/task.yaml",
        "languageId": "yaml",
        "version": 1,
        "text": "AWSTemplateFormatVersion: \"2010-09-09\"\r"
    }
}