update of Cromshell causes failed build in terra-jupyter-base

[HBBOUWMAN]

It looks like Cromshell was updated from alpha to beta, but this isn't changed yet in the Dockerfile of terra-jupyter-base.

This line of code will cause the failed build:
RUN cromshell-alpha version

If you change cromshell-alpha to cromshell-beta the build will succeed.

[bshifaw]

Looks like it was updated:

terra-docker/terra-jupyter-base/Dockerfile

Line 122 in c762c95

RUN cromshell-beta version