Update Dockerfile

1 job for master in 6 minutes and 30 seconds (queued for 1 second)
Name Stage Failure
image_build Build
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

Error in loadNamespace(name) : there is no package called ‘svMisc’
Calls: :: ... loadNamespace -> withRestarts -> withOneRestart -> doWithOneRestart
Execution halted
The command '/bin/sh -c R -f /tmp/install.R && R --quiet -e "install.packages('webshot'); webshot::install_phantomjs()" && pip3 install -r /tmp/requirements.txt' returned a non-zero code: 1
Cleaning up file based variables
ERROR: Job failed: exit code 1