Adding testing page for Dictionary page after non-dict data page in same column-chunk

The spec doesn't disable the case that:

```
Dict Page | Dict Index Page | Data Page | Dict Index Page
```

We need check:
1. Did we allowing this?
2. Should we add testing case for the case

Start by reading the spec and the existing tests for Dictionary and Data pages. Check whether the sequence `Dict Page | Dict Index Page | Data Page | Dict Index Page` is currently permitted, then add a test case if the specification requires different behavior. Done means the expected handling of this sequence is covered by the testing page.

Written by the indexing model from the issue text.