SG-43838 [Coverage test] Uncovered function to validate advisory-only threshold

[stevelittlefish]

Purpose

This PR exists purely to validate that the Codecov configuration changes in #1109 work as intended.

It adds format_version_range() to tank/util/version.py — a plausible but deliberately untested utility function. No tests cover it, so Codecov will report 0% patch coverage for the changed lines.

What we expect to see

Without #1109	With #1109
CI goes red, patch coverage fails	CI stays green, check is advisory only
Codecov blocks merge	Codecov reports the miss but does not block

If CI is green on this PR despite the uncovered lines, the threshold config is working correctly.

What to check after CI runs

• GitHub status checks are green (not red) on this PR
• Codecov still posts a PR comment showing the coverage miss
• The Codecov check is marked as informational, not a failure

Jira: SG-43838

🤖 Generated with Claude Code

[codecov]

Codecov Report

❌ Patch coverage is 85.71429% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 79.46%. Comparing base (67aa36f) to head (dc1f3cf).

Files with missing lines	Patch %	Lines
python/tank/util/version.py	85.71%	1 Missing ⚠️

Additional details and impacted files

@@                         Coverage Diff                         @@
##           sg-43838/improve-codecov-config    #1110      +/-   ##
===================================================================
- Coverage                            79.46%   79.46%   -0.01%     
===================================================================
  Files                                  206      206              
  Lines                                21007    21014       +7     
===================================================================
+ Hits                                 16694    16698       +4     
- Misses                                4313     4316       +3     

Flag	Coverage Δ
Linux	78.93% <85.71%> (+<0.01%)	⬆️
Python-3.10	79.28% <85.71%> (+<0.01%)	⬆️
Python-3.11	79.18% <85.71%> (+<0.01%)	⬆️
Python-3.13	79.18% <85.71%> (+<0.01%)	⬆️
Python-3.9	79.25% <85.71%> (-0.01%)	⬇️
Windows	78.96% <85.71%> (-0.01%)	⬇️
macOS	78.94% <85.71%> (+<0.01%)	⬆️

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