e2e: skip some test on IPv6/non-dual

[zirain]

for RateLimit tests, it's because of

            - sourceCIDR:
                value: 0.0.0.0/0
                type: Distinct

[codecov[bot]]

Codecov Report

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

Project coverage is 65.58%. Comparing base (c9ae045) to head (5000880). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #4726 +/- ## ========================================== - Coverage 65.60% 65.58% -0.03% ========================================== Files 211 211 Lines 31998 31998 ========================================== - Hits 20993 20986 -7 - Misses 9764 9768 +4 - Partials 1241 1244 +3 ```

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