fix(flatten): in options, guarded against possible json serialization of

[fredbi]

funcs

Non-serializable exported fields should be guarded by json tag "-".

Also: updated linter (discarded goconst, deprecated linters, deprecated nolint directives). Acknowledged one remaining high complexity in flatter.

Change type

Please select: 🆕 New feature or enhancement|🔧 Bug fix'|📃 Documentation update

Short description

Fixes

Full description

Checklist

• I have signed all my commits with my name and email (see DCO. This does not require a PGP-signed commit
• I have rebased and squashed my work, so only one commit remains
• I have added tests to cover my changes.
• I have properly enriched go doc comments in code.
• I have properly documented any breaking change.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.01%. Comparing base (70fd025) to head (a69bced).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #221   +/-   ##
=======================================
  Coverage   92.01%   92.01%           
=======================================
  Files          30       30           
  Lines        3393     3393           
=======================================
  Hits         3122     3122           
  Misses        189      189           
  Partials       82       82           

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