Refactor dependencies to specify versions and remove empty entries

Author: ZenanH

CondaPkg.toml

@@ -2,14 +2,14 @@ channels = ["conda-forge"]
 
 [deps]
 python = "==3.12"
+rasterio = ">=1.4.3"
+numpy = ">=2.2"
+shapely = ">=2.1"
+trimesh = ">=4.6"
+rtree = ">=1.4"
+scipy = ">=1.15"
+meshio = ">=5.3"
 
 [pip.deps]
-numpy = ""
-shapely = ""
-open3d = ""
-trimesh = ""
-rtree = ""
-scipy = ""
-meshio = ""
-rasterio = ""
+open3d = "==0.19"
 pysplashsurf = "==0.12.0.1"