Support commands besides plan / apply

[mwarkentin]

Example: SREs sometimes need to delete resources. It would be nice to have access to run a terragrunt destroy through TACOS (for audit / history purposes vs running locally).

[mwarkentin]

In the meantime I'm reduced to copy / pasting into Github comments myself like a cave man: https://github.com/getsentry/ops/pull/13700#issuecomment-2608239686