Add check of enum values defined for a specific index

[mrbean-bremen]

• fix checking of multi-valued tags with defined enum values
• fixes validation of enumerated values does not support multiple values #87

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.95%. Comparing base (e8644e2) to head (90f5eb8).
Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #88      +/-   ##
==========================================
+ Coverage   89.82%   89.95%   +0.12%     
==========================================
  Files          15       15              
  Lines        1632     1652      +20     
==========================================
+ Hits         1466     1486      +20     
  Misses        166      166              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.