.github: add triggering on versioned tags

[MSevey]

Small update to include running the CI on versioned tags, i.e. any tag starting with a v.

This allows for tagging release candidates manually.

[codecov-commenter]

Codecov Report

Merging #1237 (d439da2) into main (738b69f) will increase coverage by 0.05%. The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1237      +/-   ##
==========================================
+ Coverage   55.64%   55.69%   +0.05%     
==========================================
  Files         160      160              
  Lines        9862     9862              
==========================================
+ Hits         5488     5493       +5     
+ Misses       3838     3834       -4     
+ Partials      536      535       -1     

Impacted Files	Coverage Δ
share/ipld/get.go	90.22% <0.00%> (-1.34%)	:arrow_down:
das/coordinator.go	92.64% <0.00%> (+1.47%)	:arrow_up:
fraud/service.go	77.02% <0.00%> (+2.02%)	:arrow_up:
fraud/proof.go	82.75% <0.00%> (+13.79%)	:arrow_up:

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