Bump Documenter compat to v1

[codecov[bot]]

Codecov Report

All modified lines are covered by tests :white_check_mark:

Comparison is base (615ad03) 28.36% compared to head (fae67fb) 28.36%. Report is 2 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #918 +/- ## ======================================= Coverage 28.36% 28.36% ======================================= Files 11 11 Lines 564 564 ======================================= Hits 160 160 Misses 404 404 ```

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