Bump matrix-sdk-crypto-wasm to 3.0.1 (#3849)
* Bump matrix-sdk-crypto-wasm to 3.0.0
... which changes the API of `bootstrapCrossSigning` a bit.
* Fix class names in test
* fix brokenness in bootstrapCrossSigning
* Bump to `matrix-sdk-crypto-wasm` 3.0.1
