makefile: pull data

[Borda]

What does this PR do?

Reaction to #1080 (comment)

Before submitting

• Was this discussed/approved via a Github issue? (no need for typos and docs improvements)
• Did you read the contributor guideline, Pull Request section?
• Did you make sure to update the docs?
• Did you write any new necessary tests?

PR review

Anyone in the community is free to review the PR once the tests have passed.
If we didn't discuss your PR in Github issues there's a high chance it will not be merged.

Did you have fun?

Make sure you had fun coding 🙃

[codecov]

Codecov Report

Merging #1081 (d481793) into master (cb2d553) will decrease coverage by 24%.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           master   #1081     +/-   ##
========================================
- Coverage      95%     71%    -24%     
========================================
  Files         181     181             
  Lines        8103    8103             
========================================
- Hits         7672    5762   -1910     
- Misses        431    2341   +1910     

[23pointsNorth]

I recommend adding

	_data/
	data.zip

to .gitignore as well.