Update Dockerfile

Dockerfile

@@ -4,14 +4,14 @@ FROM rocker/geospatial:latest
 # Set the working directory inside the container
 WORKDIR /code
 
-# Install required R packages, ensuring dependencies are included
+# Install required R packages, specifying the CRAN repository for reliability.
+# Note: "cartogram" has been removed to avoid the dependency error for rnaturalearthhires.
 RUN install2.r --error --deps TRUE --repos "https://cran.r-project.org" \
     shiny \
     shinydashboard \
     dplyr \
     readr \
     sf \
-    cartogram \
     ggplot2 \
     rnaturalearth \
     rnaturalearthdata \