Meson: use pkg-config for more libraries

[tobiasdiez]

Use the new pkgconfig files of sirocco, homfly, brial, ...

I didn't test that it's indeed discovering the new pkg-config files and that compilation is successful.

📝 Checklist

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• I have created tests covering the changes.
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⌛ Dependencies

[github-actions]

Documentation preview for this PR (built with commit 8a0d156; changes) is ready! 🎉
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[orlitzky]

This is going to conflict with #40485. Volker is probably waiting until the next beta to merge new features.