update package dependencies

Dockerfile

@@ -5,6 +5,8 @@ WORKDIR /code
 # Install stable packages from CRAN
 RUN install2.r --error \
     dplyr \ 
+    tidyr \ 
+    vetiver \ 
     echarts4r \ 
     shiny 
 

app.R

@@ -1,6 +1,6 @@
 # library(readr)
-# library(pins)
-# library(vetiver)
+library(tidyr)
+library(vetiver)
 library(shiny)
 library(bslib)
 library(dplyr)