fix(hostname): go1.27 idna valid label no longer tolerates trailing d…

[fredbi]

…ot in hosts

We keep our existing behavior (follows https://url.spec.whatwg.org/#concept-host-parser) and trim any trailing dot before submitting the string to idna label check.

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

❌ Patch coverage is 60.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.13%. Comparing base (bdd8638) to head (43e75f0).
⚠️ Report is 2 commits behind head on master.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
format.go	33.33%	2 Missing ⚠️

❌ Your patch check has failed because the patch coverage (60.00%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #297      +/-   ##
==========================================
+ Coverage   85.97%   89.13%   +3.16%     
==========================================
  Files          24       24              
  Lines        2958     2926      -32     
==========================================
+ Hits         2543     2608      +65     
- Misses        305      317      +12     
+ Partials      110        1     -109     

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