ci(craft): temporary remove new NuGet package for initial release

[Flash0ver]

Summary

Temporary remove nuget:Sentry.OpenTelemetry.Exporter from Craft.

Remarks

I ran into a chicken-or-the-egg problem when trying to publish release 6.5.0 which includes a new SDK / NuGet package:

1. feat: Add support to send OTEL traces via OTLP #4899
   • added to package .craft.yml
   • nuget:Sentry.OpenTelemetry.Exporter:
2. publish: getsentry/sentry-dotnet@6.5.0 publish#8066
   • publish 6.5.0
   • but fails: https://github.com/getsentry/publish/actions/runs/25371915505
   • because Sentry.OpenTelemetry.Exporter does not exist yet
3. feat(dotnet): add NuGet package Sentry.OpenTelemetry.Exporter sentry-release-registry#234
   • manually added Sentry.OpenTelemetry.Exporter to sentry-release-registry
4. publish: getsentry/sentry-dotnet@6.5.0 publish#8066
   • publish 6.5.0 again
   • but fails again: https://github.com/getsentry/publish/actions/runs/25375816412
   • because Sentry.OpenTelemetry.Exporter now already exists

To fix the issue:

1. remove nuget:Sentry.OpenTelemetry.Exporter: from .craft.yml
   • this PR
2. publish the release again
   • publish: getsentry/sentry-dotnet@6.5.0 publish#8081
3. add nuget:Sentry.OpenTelemetry.Exporter: to .craft.yml
   • ci(craft): revert temporary removal of new NuGet package for initial release #5193

---

Instead - for the next time we publish a new package - before we publish the new package, we should do:

• ci: update Craft to allow adding new Packages #5195

---

#skip-changelog

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.08%. Comparing base (14c1d8c) to head (249234a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5192   +/-   ##
=======================================
  Coverage   74.08%   74.08%           
=======================================
  Files         506      506           
  Lines       18247    18247           
  Branches     3564     3564           
=======================================
+ Hits        13518    13519    +1     
  Misses       3858     3858           
+ Partials      871      870    -1     

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