[CI] test renv cache repo

.gitlab-ci.yml

@@ -12,6 +12,8 @@ check:
   stage: check
   image: gitlab-research.centralesupelec.fr:4567/2019pradaty/rcached
   script:
+    - echo ~
+    - ls -la ~
     - Rscript -e "cat(paste('path renv root:', renv::paths\$root()), '\\n')"
       # - Rscript -e 'if (!requireNamespace("renv", quietly = TRUE)) install.packages("renv")'
       # - Rscript -e 'renv::restore()'