Prefix release CI

[atmorling]

Closes #297
yet to be tested in anger

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.64%. Comparing base (55e989a) to head (bd37ec8).
Report is 35 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #301      +/-   ##
==========================================
- Coverage   73.61%   63.64%   -9.97%     
==========================================
  Files          29       30       +1     
  Lines        2240     2440     +200     
==========================================
- Hits         1649     1553      -96     
- Misses        591      887     +296     

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[cisaacstern]

LGTM!
Per sync conversation, follow-ons include:

• Remove ecoscope-core publish recipe from workflows
• Move lonboard and earthranger-client recipes into separate repo (with workflow dispatch)