fix(profiling): catch sendProfile rejection

[JonasBa]

This was causing errors when running sentry devserver in prod. Ensure we catch the envelope send in case of a network error.

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser - ES5 CDN Bundle (gzipped + minified)	20.4 KB (+0.01% 🔺)
@sentry/browser - ES5 CDN Bundle (minified)	63.27 KB (0%)
@sentry/browser - ES6 CDN Bundle (gzipped + minified)	18.97 KB (-0.02% 🔽)
@sentry/browser - ES6 CDN Bundle (minified)	56.18 KB (0%)
@sentry/browser - Webpack (gzipped + minified)	20.64 KB (0%)
@sentry/browser - Webpack (minified)	67.41 KB (0%)
@sentry/react - Webpack (gzipped + minified)	20.66 KB (0%)
@sentry/nextjs Client - Webpack (gzipped + minified)	48.66 KB (+0.23% 🔺)
@sentry/browser + @sentry/tracing - ES5 CDN Bundle (gzipped + minified)	27.74 KB (+0.37% 🔺)
@sentry/browser + @sentry/tracing - ES6 CDN Bundle (gzipped + minified)	26 KB (+0.36% 🔺)
@sentry/replay ES6 CDN Bundle (gzipped + minified)	43.17 KB (0%)
@sentry/replay - Webpack (gzipped + minified)	37.19 KB (0%)
@sentry/browser + @sentry/tracing + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	61.29 KB (+0.16% 🔺)
@sentry/browser + @sentry/replay - ES6 CDN Bundle (gzipped + minified)	54.37 KB (0%)