Fix msodbc installation problem in CI.

[kklein]

msodbcsql17
0 upgraded, 0 newly installed, 1 downgraded, 0 to remove and 13 not upgraded.
E: Packages were downgraded and -y was used without --allow-downgrades.
Error: Process completed with exit code 100.

See e.g. here [0] for current problem in CI.

[0] https://github.com/Quantco/datajudge/runs/7494860116?check_suite_focus=true

[jonashaag]

Interesting. If we already have a version of msodbcsql17 installed, why even install another version?

[kklein]

My interpretation was that some other dependency would be downgraded, not msodbcsql17 itself - I'm quite unsure about this, though.

[jonashaag]

No:

The following packages will be DOWNGRADED:
  msodbcsql17

Can you try removing the entire msodbcsql17 install/upgrade/downgrade?

[kklein]

I'd like to think that our docker image simply comes with the driver already installed. Yet, I'm not sure why we added this installation step.

I found a dockerfile installing msodbcsql18:

https://github.com/microsoft/mssql-docker/blob/master/linux/mssql-tools/Dockerfile.ubuntu2004#L15

I think I would be in favor of sticking with the downgrade for now and delaying the decision as to whether to get rid of the installation step until @ivergara is back. Does that sound good to you @jonashaag ?

[jonashaag]

Sure.