test with development version of Numpy

[zacharyburnett]

resolves SCSB-89

fixes dev version specifier of Numpy, and redefine label to be more explicit (Weekly CI -> run devdeps tests)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 1.72%. Comparing base (8e6053b) to head (0f12da8).

❗ There is a different number of reports uploaded between BASE (8e6053b) and HEAD (0f12da8). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (8e6053b)	HEAD (0f12da8)
	2	1

Additional details and impacted files

@@            Coverage Diff            @@
##           master     #35      +/-   ##
=========================================
- Coverage   11.21%   1.72%   -9.49%     
=========================================
  Files           7       7              
  Lines         990     987       -3     
  Branches      196     196              
=========================================
- Hits          111      17      -94     
- Misses        879     970      +91     

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