Meson: find more dependencies via pkg-config

[tobiasdiez]

Use pkg-config to find more dependencies, and add version constraints (mostly) as specified in the spkg-configure scripts.

:memo: Checklist

• [ ] The title is concise and informative.
• [ ] The description explains in detail what this PR is about.
• [ ] I have linked a relevant issue or discussion.
• [ ] I have created tests covering the changes.
• [ ] I have updated the documentation and checked the documentation preview.

:hourglass: Dependencies

• 37447 for the updated conda lock files

[github-actions[bot]]

Documentation preview for this PR (built with commit 13744fe1b69af2010049928b55c570032d35d5b2; changes) is ready! :tada: This preview will update shortly after each push to this PR.