feat(v8/astro): Remove deprecated exports from Astro SDK

[Lms24]

This PR removes all deprecations except for getCurrentHub which (unless I missed something last week) stays deprecated for now.

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser (incl. Tracing, Replay, Feedback) - Webpack (gzipped)	77.84 KB (-0.07% 🔽)
@sentry/browser (incl. Tracing, Replay) - Webpack (gzipped)	69.08 KB (-0.07% 🔽)
@sentry/browser (incl. Tracing, Replay with Canvas) - Webpack (gzipped)	73 KB (-0.07% 🔽)
@sentry/browser (incl. Tracing, Replay) - Webpack with treeshaking flags (gzipped)	62.69 KB (-0.07% 🔽)
@sentry/browser (incl. Tracing) - Webpack (gzipped)	33.28 KB (-0.09% 🔽)
@sentry/browser (incl. browserTracingIntegration) - Webpack (gzipped)	33.13 KB (-0.09% 🔽)
@sentry/browser (incl. Feedback) - Webpack (gzipped)	31.13 KB (-0.1% 🔽)
@sentry/browser (incl. sendFeedback) - Webpack (gzipped)	31.13 KB (-0.1% 🔽)
@sentry/browser - Webpack (gzipped)	22.41 KB (-0.13% 🔽)
@sentry/browser (incl. Tracing, Replay, Feedback) - ES6 CDN Bundle (gzipped)	75.82 KB (-0.07% 🔽)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (gzipped)	67.38 KB (-0.08% 🔽)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (gzipped)	33.34 KB (-0.1% 🔽)
@sentry/browser - ES6 CDN Bundle (gzipped)	24.44 KB (-0.17% 🔽)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (minified & uncompressed)	212.37 KB (-0.12% 🔽)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (minified & uncompressed)	100.99 KB (-0.17% 🔽)
@sentry/browser - ES6 CDN Bundle (minified & uncompressed)	73.4 KB (-0.24% 🔽)
@sentry/browser (incl. Tracing) - ES5 CDN Bundle (gzipped)	36.59 KB (-0.09% 🔽)
@sentry/react (incl. Tracing, Replay) - Webpack (gzipped)	69.44 KB (-0.08% 🔽)
@sentry/react - Webpack (gzipped)	22.44 KB (-0.13% 🔽)
@sentry/nextjs Client (incl. Tracing, Replay) - Webpack (gzipped)	87.26 KB (-0.07% 🔽)
@sentry/nextjs Client - Webpack (gzipped)	50.38 KB (-0.07% 🔽)
@sentry-internal/feedback - Webpack (gzipped)	17.1 KB (-0.03% 🔽)