Peer info for UI: Add context timeout in endpoint (#2361)

The edit peer button does not appear in the case where we run into
connection timeouts when connecting to Postgres - as we hit a 1 minute
gateway timeout in the UI
This PR sets a 30 second timeout on the endpoint to get peer info so
that the endpoint errors out faster and the edit peer button is shown

Ideally we would decouple the edit button from this endpoint entirely
though

flow/cmd/peer_data.go

@@ -82,6 +82,8 @@ func (h *FlowRequestHandler) GetPeerInfo(
 	ctx context.Context,
 	req *protos.PeerInfoRequest,
 ) (*protos.PeerInfoResponse, error) {
+	ctx, cancelCtx := context.WithTimeout(ctx, 30*time.Second)
+	defer cancelCtx()
 	peer, err := connectors.LoadPeer(ctx, h.pool, req.PeerName)
 	if err != nil {
 		return nil, err