Support preserve_symlinks=False for directories

[coretl]

Fixes #1819

[codecov[bot]]

Codecov Report

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

Project coverage is 97.79%. Comparing base (c53b928) to head (b404eb7). Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1820 +/- ## ======================================= Coverage 97.78% 97.79% ======================================= Files 49 49 Lines 5108 5116 +8 ======================================= + Hits 4995 5003 +8 Misses 113 113 ``` | [Flag](https://app.codecov.io/gh/copier-org/copier/pull/1820/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=copier-org) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/copier-org/copier/pull/1820/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=copier-org) | `97.79% <100.00%> (+<0.01%)` | :arrow_up: | 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=copier-org#carryforward-flags-in-the-pull-request-comment) to find out more.

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[coretl]

No problem, is there any chance of a patch release soon? Otherwise I'll have to communicate to users of our template that they need to downgrade copier to use it...

[sisp]

No problem, is there any chance of a patch release soon?

/cc @yajo

[yajo]

https://github.com/copier-org/copier/releases/tag/v9.4.1