CI: tests/end2end: macOS job fails the HTML2PDF test

Disabling the macOS test here: https://github.com/strictdoc-project/strictdoc/pull/2006.

```
Some problems with Chrome Driver versions compatibility.

One solution in the future could be to use the system chrome driver available on the GitHub Actions CI machines.
```

https://github.com/strictdoc-project/strictdoc/actions/runs/11941147465/job/33287609038?pr=2004