Do not use of magick.

Conflict with Cairo device.
https://github.com/yihui/knitr/issues/1365

Dockerfile

@@ -86,7 +86,7 @@ RUN ["install2.r", "ade4", "Cairo", "countrycode", "drake", "furrr", "future.cal
 ## Only needed with the option fig_crop
 ## which gives issues with device Cairo
 ## https://github.com/yihui/knitr/issues/1365
-RUN ["install2.r", "magick"]
+# RUN ["install2.r", "magick"]
 
 # Set up environment
 RUN echo 'alias ll="ls -lh --color=tty"' >> ~/.bashrc

src/packages.R

@@ -16,7 +16,7 @@ pacman::p_load(
   knitr,
   lattice,
   latticeExtra,
-  magick,
+  # magick,  # fig_crop conflicts with Cairo: https://github.com/yihui/knitr/issues/1365
   maptools,
   mgcv,
   raster,