[processing] fix description for GRASS 7 v.drape algorithm (fix #16175)

Author: alexbruy

python/plugins/processing/algs/grass7/description/v.drape.txt

@@ -3,7 +3,7 @@ Converts vector map to 3D by sampling of elevation raster map.
 Vector (v.*)
 ParameterVector|input|Iput vector layer|-1|False
 ParameterRaster|elevation|Elevation raster map for height extraction|False
-ParameterSelection|method|Sampling method|nearest;bilinear;cubic
+ParameterSelection|method|Sampling method|nearest;bilinear;bicubic
 ParameterString|scale|Scale factor for sampled raster values|1.0
 ParameterString|where|WHERE conditions of SQL statement without 'where' keyword|
 ParameterString|null_value|Vector Z value for unknown height|