fetch tags to version nightly wheels correctly

[ianhi]

Add a line to fetch more history in the wheels action so that the nightly wheel gets the correct version. The main release wheels worked because they were always garunteed to be on a tag instead of some random commit hash

Fixes the versions here: https://anaconda.org/scientific-python-nightly-wheels/numcodecs/files

@jhamman

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.33%. Comparing base (dbcf37b) to head (d994592).
⚠️ Report is 1 commits behind head on main.

❌ Your project status has failed because the head coverage (90.33%) is below the target coverage (100.00%). You can increase the head coverage or adjust the target coverage.

❗ There is a different number of reports uploaded between BASE (dbcf37b) and HEAD (d994592). Click for more details.

HEAD has 10 uploads less than BASE

Flag	BASE (dbcf37b)	HEAD (d994592)
	15	5

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #790      +/-   ##
==========================================
- Coverage   99.82%   90.33%   -9.49%     
==========================================
  Files          64       64              
  Lines        2804     2804              
==========================================
- Hits         2799     2533     -266     
- Misses          5      271     +266     

see 2 files with indirect coverage changes

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[d-v-b]

happy to ignore the test failures here, this looks good