chore(eBPF): change error log-levels (#8805)

Neither of the moved error cases should happen very often so it is fine
to log them on debug.

- `Error::NotTurn` only happens if we receive a UDP packet that isn't
STUN traffic (port 3478) or not in the allocation-port range. I am
suspecting there to be a bug that I am aiming to fix in #8804.
- `Error::NotAChannelDataMessage` will happen for all STUN control
traffic, like channel bindings, allocation requests, etc. Those only
happen occasionally so won't spam too much.
- `Ipv4PacketWithOptions` should basically not happen at all because -
as far as I know - IPv4 options aren't used a lot.

In any case, when debugging, it is useful to see when we do hit these
cases to know, why a packet was offloaded to user space.

rust/relay/ebpf-turn-router/src/main.rs

@@ -69,13 +69,12 @@ static UDP_TO_CHAN_64: HashMap<PortAndPeerV6, ClientAndChannelV4> =
 #[xdp]
 pub fn handle_turn(ctx: XdpContext) -> u32 {
     try_handle_turn(&ctx).unwrap_or_else(|e| match e {
-        Error::NotUdp
-        | Error::NotTurn
-        | Error::NotIp
-        | Error::NotAChannelDataMessage
-        | Error::Ipv4PacketWithOptions => xdp_action::XDP_PASS,
+        Error::NotIp | Error::NotUdp => xdp_action::XDP_PASS,
 
         Error::PacketTooShort
+        | Error::NotTurn
+        | Error::NotAChannelDataMessage
+        | Error::Ipv4PacketWithOptions
         | Error::NoMacAddress
         | Error::UnsupportedChannel(_)
         | Error::NoEntry(_) => {