Support outputs variable in dependency outputs section

[kichristensen]

What does this change

Support shorter syntax for addressing the current dependency's outputs, using ${outputs.OUTPUT_NAME} instead of ${bundle.dependencies.CURRET_DEP.outputs.OUTPUT_NAME}.
The output variable is only applicable within the outputs section of a dependency and both formats are still supported.

What issue does it fix

Closes #2662

Notes for the reviewer

As stated in #2662 we should determine if we want the variable name is too close to bundle.outputs.

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