fix: Use correct format and event for workflows for release tags

[legleux]

High Level Overview of Change

Trying to fix 2 issues:

1. Conan recipes for release would never be uploaded since there's no tag event in GitHub.
2. on-tag.yml would never trigger unless we start tagging releases prefixed with v.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.4%. Comparing base (b1e5ba0) to head (a20e046).
⚠️ Report is 2 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff            @@
##           develop   #6554     +/-   ##
=========================================
- Coverage     81.5%   81.4%   -0.0%     
=========================================
  Files          988     988             
  Lines        74411   74411             
  Branches      7560    7559      -1     
=========================================
- Hits         60610   60599     -11     
- Misses       13801   13812     +11     

see 5 files with indirect coverage changes

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[mathbunnyru]

@scutuatua-crypto, please stop spamming with PR approvals