Problems when starting peerswapd

## Background
Failure in peerswapd startup depending on lnd startup status.
Sometimes hangs indefinitely and sometimes the process is terminated.

### Hangs indefinitely
It occurs when the lnd gRPC server is not up.
Hangs while waiting for [DialContext](https://github.com/ElementsProject/peerswap/blob/master/lnd/connect.go#L135) to connect.

#### Reason
Because the [DialContext](https://pkg.go.dev/google.golang.org/grpc#DialContext) is running in blocking mode and there is no context timeout.

#### Plan for improvement
I think it could have a certain time limit, and if it can't connect, it could output a log and terminate.

### Process terminated
Occurs when unable to connect to lnd server.

```sh
[INFO] PeerSwap LND starting up with commit 600c73d8600c8bdf6226edf027cd9578e24e3978 and cfg: Host localhost:42069, ConfigFile peerswap.conf, Datadir .peerswap, Bitcoin enabled: true, Lnd Config: host: localhost:10009, macaroonpath admin.macaroon, tlspath tls.cert, elements: elements: rpcuser: admin1, rpchost: http://127.0.0.1/, rpcport 18884, rpcwallet: swaplnd, liquidswaps: true
2024/01/10 08:06:41 [INFO] DB version: v0.2, Protocol version: 3
2024/01/10 08:06:42 [DEBUG] [grpc_conn]: grpc_retry attempt: 0, got err: rpc error: code = Unknown desc = waiting to start, RPC services not available
```

#### Reason
When the error occurs, the process of peerswapd is terminated immediately without retry.

#### plan for improvement
When the said error occurs, how about trying to retry a certain number of times, since it is likely to be recovered by retrying?
RetryCodesWithMsg containing `waiting to start, RPC services not available`, etc.