fix: Added missing method to iOS noop-bridge

[bitsandfoxes]

Fixes #1982

The NoOp bridge was missing a method the bridge proxy was expecting.
To prevent any future regressions I've added a test that fetches all EntryPoints used in our bridge proxy. This should give a good snapshot/indication of what we're expecting to be in the bridge. We're comparing that list with what's in the bridges. One edgecase due to convention and therefor not covered is future additions to the bridge proxy that don't rely on EntryPoint.

[github-actions]

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## Unreleased

- Added missing method to iOS noop-bridge ([#1983](https://github.com/getsentry/sentry-unity/pull/1983))

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