Remove cran from new repos

Author: Robinlovelace

suggests/Dockerfile

@@ -1,6 +1,5 @@
 FROM ghcr.io/geocompx/minimal
 RUN echo "options(repos = c(" \
     "geocompr = 'https://geocompr.r-universe.dev'," \
-    "mlr3 = 'https://mlr3-org.r-universe.dev'," \
-    "cran = 'https://cloud.r-project.org'))" >> /usr/local/lib/R/etc/Rprofile.site
+    "mlr3 = 'https://mlr3-org.r-universe.dev'))" >> /usr/local/lib/R/etc/Rprofile.site
 RUN R -e "install.packages('geocompkg', upgrade = TRUE, dependencies = TRUE, force = TRUE)"