feat(relay): do not assume empty means {{auto}} for some sdks

[Litarnus]

This PR introduces a cut-off version after which an empty string will not be translated to {{auto}} for Javascript and Cocoa/Objc platforms.

Turning on the toggle in Sentry will inject rules to scrub IP addresses, so we don't have to touch the code that derives {{auto}} to the IP itself.
If we have concerns with the approach we can also check in the code that derives the IP.

Cocoa sends {{auto}} starting with 6.2.0.
Javascript sends {{auto}} starting with 9.0.0.
Obj-C SDK is deprecated so we keep the old behaviour as there will never be a new version.

[cleptric]

Instead of making this decision based on the platform, we need to use sdk.name.
I compiled a list of all relevant SDKs and the minimum version where Relay should no longer infer the IP by default.

# JS FE
sentry.javascript.angular -> v9.0.0
sentry.javascript.angular-ivy -> v9.0.0
sentry.javascript.astro -> v9.0.0
sentry.javascript.browser -> v9.0.0
sentry.javascript.ember -> v9.0.0
sentry.javascript.gatsby -> v9.0.0
sentry.javascript.nextjs -> v9.0.0
sentry.javascript.nuxt -> v9.0.0
sentry.javascript.react -> v9.0.0
sentry.javascript.react-router -> v9.0.0
sentry.javascript.remix -> v9.0.0
sentry.javascript.solid -> v9.0.0
sentry.javascript.solidstart -> v9.0.0
sentry.javascript.svelte -> v9.0.0
sentry.javascript.sveltekit -> v9.0.0
sentry.javascript.tanstackstart -> v9.0.0
sentry.javascript.vue -> v9.0.0
sentry.javascript.wasm -> v9.0.0

# Mobile
sentry.javascript.react-native -> v7.0.0
sentry.cocoa.react-native -> v8.47.0 **TBD**

sentry.javascript.capacitor -> v2.0.0
sentry.cocoa.capacitor -> v8.47.0 **TBD**

# Others
sentry.javascript.electron -> v6.0.0

[kahest]

We are adding a note to sentry-cocoa changelog that this behavior changes with version 8.47.0 of the SDK -> getsentry/sentry-cocoa#4945

[Dav1dde]

@kahest we're still evaluating options and thinking of alternate solutions.

@cleptric did a small writeup here.

So maybe not yet ready for a changelog entry.