[MNT] skip tests involved in windows failures until resolved

[fkiraly]

This PR skips tests involved in the failures on windows listed in #1623 until the underlying issues are resolved, see #1632 and #1632

[codecov-commenter]

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Codecov Report

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

Project coverage is 90.19%. Comparing base (4df80af) to head (92bedd1). Report is 1 commits behind head on master.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1631 +/- ## ======================================= Coverage 90.19% 90.19% ======================================= Files 30 30 Lines 4724 4724 ======================================= Hits 4261 4261 Misses 463 463 ``` | [Flag](https://app.codecov.io/gh/jdb78/pytorch-forecasting/pull/1631/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jan+Beitner) | Coverage Δ | | |---|---|---| | [cpu](https://app.codecov.io/gh/jdb78/pytorch-forecasting/pull/1631/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jan+Beitner) | `90.19% <ø> (ø)` | | | [pytest](https://app.codecov.io/gh/jdb78/pytorch-forecasting/pull/1631/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jan+Beitner) | `90.19% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Jan+Beitner#carryforward-flags-in-the-pull-request-comment) to find out more.

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