[iOS] Fix HeaderFooterGrid to pass on CV1 and CV2

### Description

This test was modified to only run on CV2 because it's not passing on CV1
https://github.com/dotnet/maui/pull/25719/files#diff-f0958ee62c0d1d0bd45c40bbafe319a04b51823e33fc7d4411eba9c590e391e6R19

We need to fix it so the test is passing on both sets of handlers