chore: remove rgdal dependency and require raster 3.6-11

Author: be-marc

DESCRIPTION

@@ -37,8 +37,7 @@ Suggests:
     mlr3learners (>= 0.4.5),
     paradox,
     ranger,
-    raster,
-    rgdal,
+    raster (>= 3.6-11),
     rmarkdown,
     rpart,
     stars (>= 0.5-5),
@@ -50,7 +49,7 @@ Config/testthat/parallel: false
 Encoding: UTF-8
 LazyData: true
 Roxygen: list(markdown = TRUE)
-RoxygenNote: 7.2.1
+RoxygenNote: 7.2.2
 Collate:
     'DataBackendRaster.R'
     'DataBackendVector.R'