If a taskId contains dash(-) then format the taskId to be sorrounded by squ…

[ManojTauro]

…are brackets instead of prefixing taskId with dot(.)

What changes are being made and why?

closes #5991.

If you have a task with an id that contains dashes, when moving to the Outputs tab, you get this incorrect value in the debug editor:
{{ outputs.return-dash }}

It should be {{ outputs["return-dash"] }}.

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How the changes have been QAed?

Example flow

id: test-dash
namespace: kestra.test

tasks:
  - id: return-dash
    type: io.kestra.plugin.core.debug.Return
    format: "Hello"