Remove `wxpython` pinning of `v4.2.1` after `v4.2.2` is available on conda-forge

### Solution to issue cannot be found in the documentation.

- [X] I checked the documentation.

### Issue

The current solution is to pin the specific `wxpython` v4.2.1 .

```
- wxpython =4.2.1=py310h2693ab4_5 # [osx64 and py==310]
- wxpython =4.2.1=py311ha82924a_5 # [osx64 and py==311]
- wxpython =4.2.1=py310h8348223_5 # [linux and py==310]
- wxpython =4.2.1=py311h35114c6_5 # [linux and py==311]
- wxpython =4.2.1=py310h00ffb61_5 # [win and py==310]
- wxpython =4.2.1=py311h12c1d0e_5 # [win and py==311]
```

When 4.2.2 is released, let's attempt to remove the pinning and test.

### Installed packages

```shell
N/S
```

### Environment info

```shell
N/S
```