Add terraform output to action output

[jdraymon]

Description

In order to make programmatic decisions based on the terraform plan, it would be helpful to add the results of the cdktf-cli script as an output on the action. Presently the output only goes into a generated comment, so is unavailable for the next step in a pipeline.

Concrete example:
I want to set up an action pipeline where:

1. A plan is generated
2. IF there are changes to a stack, run a apply job
3. ELSE do nothing

To solve this I'd like to parse the terraform output and detect if any changes were part of the diff/plan

References

No response

Help Wanted

• I'm interested in contributing a fix myself

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[jdraymon]

As I dig into the code a bit more, outputting the results of hasTerraformChanges() would be enough for my use case