Wip allow multiple dependencies part 2 - Use semver to resolve *some* dependency conflicts

[jsuereth]

With multiple dependencies, if two depend on the same parent, e.g. two sub-registries depend on semconv core, then we can resolve discrepencies by picking the "latest" version of semconv, assuming we do NOT have a major version conflict.

Note: Until semconv goes 1.x this will conflict for every releease.

cc @open-telemetry/specs-semconv-maintainers for awareness.

[codecov]

Codecov Report

❌ Patch coverage is 78.03738% with 47 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.3%. Comparing base (dbbabda) to head (671cc7c).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/weaver_resolver/src/attribute.rs	74.3%	20 Missing ⚠️
crates/weaver_resolver/src/loader.rs	75.3%	19 Missing ⚠️
crates/weaver_resolver/src/dependency.rs	83.3%	8 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #1377     +/-   ##
=======================================
- Coverage   82.4%   82.3%   -0.1%     
=======================================
  Files        120     120             
  Lines      10092   10249    +157     
=======================================
+ Hits        8319    8441    +122     
- Misses      1773    1808     +35     

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