Don't skip connecting to all peers if only one returns wrong data

[thedevbirb]

The call to builderhub api/l1-builder/v1/builders returns a list of Peer data, where most of the fields are required. However, it might be that due to some misconfiguration on builderhub, a peer might be missing a field or two. If that happens, we fail to process all peers:

FlowProxy/src/builderhub/mod.rs

Lines 104 to 108 in 704b52f

	async fn get_peers(&self) -> Result<Vec<Peer>, Self::Error> {
	let endpoint = format!("{}/api/l1-builder/v1/builders", self.url);
	let response = self.inner.get(endpoint).send().await?;
	response.json().await
	}

To fix this, we should have a less strict definition of builderhub return data, and then filter away individual peers who don't have compliant data.