fix: Unsupported listener protocol type error for nil supportKinds assign gateway status.

[qicz]

…sign gateway status.

What type of PR is this?

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #4216

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 65.97%. Comparing base (14830c7) to head (620602b). Report is 70 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #4345 +/- ## ======================================= Coverage 65.96% 65.97% ======================================= Files 197 197 Lines 23959 23960 +1 ======================================= + Hits 15805 15808 +3 + Misses 7027 7026 -1 + Partials 1127 1126 -1 ```

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