Unmarshalling private key tests fail in Safari (MacOS)

[MarcoPolo]

  libp2p-crypto
    go interop
      1) unmarshals private key
  0 passing (8ms)
  1 failing
  1) libp2p-crypto
       go interop
         unmarshals private key:

[MarcoPolo]

I'd argue this is extremely low priority because exporting your Go RSA key should not even be a supported path. Because:

1. We shouldn't be using RSA keys anymore.
2. We shouldn't be moving private keys around.

I made this issue to document why I'm skipping this test in Safari.

[MarcoPolo]

I'm fine with a wontfix here.