fix(dotnet): caching example used deprecated API

[bruno-garcia]

SetExtra was deprecated.

Relates to:

• fix(span): deprecation notice sentry-dotnet#4336

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
sentry-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 10, 2025 11:49pm

1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
develop-docs	⬜️ Ignored (Inspect)			Jul 10, 2025 11:49pm

[codecov]

Bundle Report

Changes will increase total bundle size by 2.45kB (0.01%) ⬆️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
sentry-docs-client-array-push	9.81MB	-6 bytes (-0.0%) ⬇️
sentry-docs-server-cjs	11.91MB	2.46kB (0.02%) ⬆️

Affected Assets, Files, and Routes:

view changes for bundle: sentry-docs-client-array-push

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
static/chunks/pages/_app-*.js	-3 bytes	878.27kB	-0.0%
static/chunks/1831-*.js	-3 bytes	421.22kB	-0.0%
server/middleware-*.js	-5.55kB	1.0kB	-84.74%
server/middleware-*.js	5.55kB	6.55kB	555.3% ⚠️
static/mLH4aWs0MBqTKWOojw0Uo/_buildManifest.js (New)	684 bytes	684 bytes	100.0% 🚀
static/mLH4aWs0MBqTKWOojw0Uo/_ssgManifest.js (New)	77 bytes	77 bytes	100.0% 🚀
static/dHOsL7Q_JzXQoCVLWzQyj/_buildManifest.js (Deleted)	-684 bytes	0 bytes	-100.0% 🗑️
static/dHOsL7Q_JzXQoCVLWzQyj/_ssgManifest.js (Deleted)	-77 bytes	0 bytes	-100.0% 🗑️

view changes for bundle: sentry-docs-server-cjs

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
1729.js	-3 bytes	1.67MB	-0.0%
../instrumentation.js	-3 bytes	997.28kB	-0.0%
9523.js	-3 bytes	973.22kB	-0.0%
../app/[[...path]]/page.js.nft.json	822 bytes	704.69kB	0.12%
../app/platform-redirect/page.js.nft.json	822 bytes	704.6kB	0.12%
../app/sitemap.xml/route.js.nft.json	822 bytes	702.57kB	0.12%