Updates of some GIS related ports

[Nicklas Larsson]

I have submitted some GIS related ports update PRs [1-4]. It would be great to
have these reviewed and merged, as they represent either very long overdue
updates and/or bug fixes.

Vincent, I believe you are maintainer for most of them (if not all), if you don’t
have the time for this at the moment, please say so and perhaps someone
else can step in.

Best,
Nicklas



[1] gdal (gdal-grass, liblas): https://github.com/macports/macports-ports/pull/18077
[2] pdal: https://github.com/macports/macports-ports/pull/18060
[3] qgis3: https://github.com/macports/macports-ports/pull/18253
[4] saga: https://github.com/macports/macports-ports/pull/18260