add deny_stage deny_message

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 75.00000% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 85.52%. Comparing base (fa05b74) to head (4401a3c).

Files	Patch %	Lines
internal/provider/resource_stage_deny.go	71.42%	1 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #505 +/- ## ========================================== + Coverage 85.41% 85.52% +0.11% ========================================== Files 82 82 Lines 8040 8047 +7 ========================================== + Hits 6867 6882 +15 + Misses 768 756 -12 - Partials 405 409 +4 ```

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