Restore RecipesBase dep to fix 1.6

[ericphanson]

xref #459 (comment)

[odow]

It can probably be removed from extras and targets?

[ericphanson]

I'm not 100% sure, but it seems to have been there pre-#459 so I think it would make sense to leave it to keep this as a minimal revert of the broken bit

[omus]

My bad. It's way too easy to miss this. Why can't I have the CI fail for TimeZones itself?

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.07%. Comparing base (2bc8f50) to head (c46befb).
Report is 5 commits behind head on master.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #461      +/-   ##
==========================================
- Coverage   92.79%   92.07%   -0.72%     
==========================================
  Files          39       39              
  Lines        1818     1830      +12     
==========================================
- Hits         1687     1685       -2     
- Misses        131      145      +14     

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[omus]

I've made another PR to add a CI check to ensure this doesn't happen again: #462