Use kiwix-build's github action to download dependencies.

[codecov[bot]]

Codecov Report

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

Project coverage is 38.95%. Comparing base (fa212fd) to head (a2e56e2). Report is 170 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1035 +/- ## ======================================= Coverage 38.95% 38.95% ======================================= Files 58 58 Lines 3958 3958 Branches 2181 2181 ======================================= Hits 1542 1542 Misses 1086 1086 Partials 1330 1330 ```

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