updated terra version requirement and bumpted catsr version to 0.5.1

DESCRIPTION

 Package: catsr
 Type: Package
 Title: R Wrapper for the CATS Modelling Framework
-Version: 0.5.0
+Version: 0.5.1
 Authors@R: person("Andreas", "Gattringer", email="andreas.gattringer@univie.ac.at", 
             role=c("aut", "cre"), comment = c(ORCID = "0000-0001-7187-9508"))
 Description: catsr is a thin wrapper around the CATS (https://cats.univie.ac.at) modelling framework, 
@@ -14,7 +14,7 @@ Roxygen: list(markdown = TRUE)
 Depends: 
     R (>= 3.3.0)
 Imports: 
-    terra (>= 1.6), jsonlite (>= 1.8), ini (>= 0.3.1),  R.utils (>= 2.12), raster, data.table, plyr, curl, grDevices, proj4, rgdal
+    terra (>= 1.7), jsonlite (>= 1.8), ini (>= 0.3.1),  R.utils (>= 2.12), raster, data.table, plyr, curl, grDevices, proj4, rgdal
 RoxygenNote: 7.2.3
 Suggests: 
     rmarkdown,