gnark-crypto's `bls12381G2.SetBytes` accepts uncompressed point with compression flag set

witness is

```
	f.Add([]byte("\x99\x88U\xbbN\x7f@\xa2\xac\xb93v)\xf8\x11\x05\\(\x16e\xcf\x15\x80S\x12,\xe2:\xebb\x9c\x15z7\xab\xa5)\xb4\xebN\xbdޣ\xf7\x8a\x17\xee\n\x110ա\x90\xcfoP|\xd5\xf4\xa6\xb4\xebPh\xbe\x19\x86\x00E\x04\v\xd4lKU\xa1x;\xcbq֗\\\x902\rؔ\xa2\xff?\xf0\x8a\x9f\xae4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"))
```