math/saga: Update to 9.10.0

Some of the new features:

• Add GPS tracking function
• Add simulation tool SCIMAP Toolkit, risk maps for diffuse pollution
• macOS/MacPorts related fixes
• Add several dgm1 downloader for german federal states
• Enable auto-completion for PySAGA in tools like VS Code

Changelog: https://sourceforge.net/p/saga-gis/wiki/Changelog%209.10.0/attachment/changelog_saga_9.10.0.txt

Reported by: portscout, Repology