chore(deps): update opentelemetry to 1.15.0

[thomhurst]

This PR contains the following updates:

Package	Type	Update	Change
OpenTelemetry.Exporter.OpenTelemetryProtocol (source)	nuget	minor	1.14.0 → 1.15.0
OpenTelemetry.Extensions.Hosting (source)	nuget	minor	1.14.0 → 1.15.0
OpenTelemetry.Instrumentation.AspNetCore (source)	nuget	minor	1.14.0 → 1.15.0
OpenTelemetry.Instrumentation.Http (source)	nuget	minor	1.14.0 → 1.15.0
OpenTelemetry.Instrumentation.Runtime (source)	nuget	minor	1.14.0 → 1.15.0

---

Release Notes

open-telemetry/opentelemetry-dotnet (OpenTelemetry.Exporter.OpenTelemetryProtocol)

v1.15.0

Release details: 1.15.0

• Added support for ActivitySource.TelemetrySchemaUrl
  and Meter.TelemetrySchemaUrl properties across exporters.
• Improved performance and reduced memory consumption for metrics histograms.
• Added mTLS configuration support for the OTLP exporter (client cert/key and
  CA certificate options).
• OpenTelemetry.Exporter.Zipkin is deprecated and will stop receiving updates
  in December 2026. Zipkin already supports OTLP ingestion.
  Migrate to OpenTelemetry.Exporter.OpenTelemetryProtocol as stated
  in the Deprecating Zipkin Exporter blog post.

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled because a matching PR was automerged previously.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Renovate Bot.

[claude]

Code review

No issues found. Checked for bugs and CLAUDE.md compliance.

This is a clean dependency update that consistently bumps all five OpenTelemetry packages from 1.14.0 to 1.15.0 in the CloudShop example project. The change maintains version consistency across related packages and introduces no compilation, logic, or security concerns.