fix(nextjs): Add tracing extension methods in wrapServerComponentWithSentry

[Lms24]

Our E2E tests were failing because apparently we don't initialize a client while building a NextJS app. This caused the tracing extension methods to not be added, resulting in startTransaction returning undefined. Not sure if this is the best way to fix this but it seems to work (h/t @timfish for the fix).

cc @lforst might be good if you take a look at this once you're back

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser - ES5 CDN Bundle (gzipped + minified)	20.44 KB (0%)
@sentry/browser - ES5 CDN Bundle (minified)	63.52 KB (0%)
@sentry/browser - ES6 CDN Bundle (gzipped + minified)	19.13 KB (0%)
@sentry/browser - ES6 CDN Bundle (minified)	56.57 KB (0%)
@sentry/browser - Webpack (gzipped + minified)	21.59 KB (0%)
@sentry/browser - Webpack (minified)	71.65 KB (+0.01% 🔺)
@sentry/react - Webpack (gzipped + minified)	21.61 KB (0%)
@sentry/nextjs Client - Webpack (gzipped + minified)	51.85 KB (-0.21% 🔽)
@sentry/browser + @sentry/tracing - ES5 CDN Bundle (gzipped + minified)	27.77 KB (+0.06% 🔺)
@sentry/browser + @sentry/tracing - ES6 CDN Bundle (gzipped + minified)	26.08 KB (+0.07% 🔺)
@sentry/replay ES6 CDN Bundle (gzipped + minified)	44.21 KB (0%)
@sentry/replay - Webpack (gzipped + minified)	38.28 KB (0%)
@sentry/browser + @sentry/tracing + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	62.4 KB (+0.02% 🔺)
@sentry/browser + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	55.95 KB (0%)