ci: add mac os to matrix tests

[glimchb]

Resolved #140

Signed-off-by: Boris Glimcher Boris.Glimcher@emc.com

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0b9cc3b) 56.69% compared to head (366fb51) 60.56%.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #141      +/-   ##
==========================================
+ Coverage   56.69%   60.56%   +3.87%     
==========================================
  Files          11       25      +14     
  Lines         822     2097    +1275     
==========================================
+ Hits          466     1270     +804     
- Misses        327      716     +389     
- Partials       29      111      +82     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[glimchb]

fails on

Testing cockroachdb
ERROR: cannot dial server.
Is the server running?
If the server is running, check --host client-side and --advertise server-side.

timeout: context deadline exceeded
Failed running "sql"

Error: exit status 1
Error: Process completed with exit code 1.
56s

[glimchb]

@philippgille I think is is ready to merge