Add QueryRaw

`Query` is percent-encoding values, `entity-bytes=2200:*` ends up as `2200%3A%2A`:

```
GET /ipfs/QmYhmPjhFjYFyaoiuNzYv8WGavpSRDwdHWe5B4M5du5Rtk?dag-scope=entity&entity-bytes=2200%3A%2A HTTP/1.1
```

while it should be:

```
GET /ipfs/QmYhmPjhFjYFyaoiuNzYv8WGavpSRDwdHWe5B4M5du5Rtk?dag-scope=entity&entity-bytes=2200:* HTTP/1.1
```

https://github.com/ipfs/gateway-conformance/actions/runs/5361027103/jobs/9726581993?pr=85#step:10:4615

@laurentsenta escaping is fine most of the time, but for this specific case, maybe we could add `QueryRaw` for cases like this one? I suspect this happens to work only because `boxo/gateway` does percent-decoding by default too, but other implementations may not do this extra step for this parameter.