[gnutls-devel] GnuTLS | Update liboqs version requirement to 0.11.0 to support final version of ML-KEM (!1883)

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Geert Hendrickx commented: https://gitlab.com/gnutls/gnutls/-/merge_requests/1883#note_2148883796


I tested interop of this branch with openssl+oqs-provider, Firefox, and Chrome.

GROUP-X25519-KYBER768 works with all of them.

GROUP-X25519-MLKEM768 fails with:

- Firefox 132 beta: `Error code: SSL_ERROR_BAD_MAC_READ`
- Chrome 130 beta: `ERR_SSL_PROTOCOL_ERROR`
- openssl client to gnutls-serv: `error:0A000119:SSL routines::decryption failed or bad record mac`
- gnutls-cli to openssl server:
```
|<1>| Discarded message[0] due to invalid decryption
*** Fatal error: Decryption has failed.
```

and GROUP-SECP256R1-MLKEM768 fails with:

- openssl client to gnutls-serv: `error:0A000417:SSL routines::ssl/tls alert illegal parameter`
- gnutls-cli to openssl server:
```
*** Fatal error: A TLS fatal alert has been received.
*** Received alert [47]: Illegal parameter
```

(X25519-MLKEM768 is different from X25519-KYBER768 in that the order of the key shares has been reversed.)

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