## Changes
This extends the `{{default_catalog}}` helper in templates to ignore any
`PERMISSION_DENIED` error. We're still reviewing when exactly this error
occurs, but if it does, it should not break templates. We should fall
back to assuming there's no default catalog (and no UC) instead.
## Testing
I have not been able to reproduce this issue, but there is a customer
report about "access denied to clusters that don't have unity catalog
enabled" being returned on a non-UC workspace. The error code in this PR
corresponds to that message.
## Next steps
We'll work together with the UC team to review if this error even makes
sense for this API. If that discussion leads to a behavior change in the
API we can update the CLI code again.
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