feat(astro): Add sentryAstro integration

[Lms24]

This PR adds the sentryAstro Astro integration which will be the core component of the Astro SDK.

The integration takes care of a few things:

• it injects SDK init code into the client and server entry points. This can happen in 3 different ways:
  • if the clientInitPath option is set, it will inject the file content from the specified file path
  • if a sentry.(client|server).config.(ts|js) file is found in the root dir, the file content will be injected
  • if neither of these cases apply, it will inject a default init call.
    • the default call can be customized with a few options that only add primitive values to the SDKs.
• it registers the Sentry Vite plugin for source maps upload, if an auth token is provided.

The idea is: Basic SDK setup will only require sentryAstro to be added by users. Everything else happens automatically. We also support a more custom setup but it will require additional config files. The reason is that we can only inject serialized code. We cannot take e.g. function callbacks (e.g. beforeSend) in the options of sentryAstro.

For more details how to set up the SDK, feel free to take a look at the README.

UPDATE: To satisfy Astros soft requirement of making the integration the default integration of the package, I decided to actually transiple the integration with the rest of the code. Therefore, I removed the "integration sync" logic that was initially in this PR. To make this work, I slightly adjusted our NPM rollup config to opt out of adding polyfills. These caused problems in Astro and are not necessary (Astro is Node 18+, so no need for polyfills injected by Sucrase).

This also means that this integration will be correctly installed when running npx astro add @sentry/astro. So we basically get half a wizard for free 🎉

ref #9182

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser (incl. Tracing, Replay) - Webpack (gzipped)	84.26 KB (0%)
@sentry/browser (incl. Tracing) - Webpack (gzipped)	31.43 KB (0%)
@sentry/browser - Webpack (gzipped)	22.02 KB (0%)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (gzipped)	78.78 KB (-0.01% 🔽)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (gzipped)	28.6 KB (-0.01% 🔽)
@sentry/browser - ES6 CDN Bundle (gzipped)	21.02 KB (-0.01% 🔽)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (minified & uncompressed)	254.48 KB (0%)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (minified & uncompressed)	86.76 KB (0%)
@sentry/browser - ES6 CDN Bundle (minified & uncompressed)	62.45 KB (0%)
@sentry/browser (incl. Tracing) - ES5 CDN Bundle (gzipped)	31.48 KB (-0.01% 🔽)
@sentry/react (incl. Tracing, Replay) - Webpack (gzipped)	84.29 KB (0%)
@sentry/react - Webpack (gzipped)	22.06 KB (0%)
@sentry/nextjs Client (incl. Tracing, Replay) - Webpack (gzipped)	102.2 KB (0%)
@sentry/nextjs Client - Webpack (gzipped)	50.96 KB (0%)