chore: add a watchdog task that tells me if the process is still running while I debug why the bot dies sometimes without existing

src/main.rs

@@ -10,7 +10,7 @@ use songbird::{
     driver::{Channels, DecodeConfig, SampleRate},
     shards::TwilightMap,
 };
-use std::{collections::BTreeMap, fmt::Debug, str::FromStr, sync::Arc};
+use std::{collections::BTreeMap, fmt::Debug, str::FromStr, sync::Arc, time::Duration};
 use strum::EnumString;
 use tokio::{select, signal::ctrl_c, task::JoinSet};
 use tokio_util::{sync::CancellationToken, time::FutureExt as _};
@@ -416,6 +416,17 @@ async fn main() -> Result<(), MainError> {
         }
     });
 
+    tokio::spawn(async {
+        let duration = Duration::from_secs(120);
+        let mut interval = tokio::time::interval(duration);
+
+        loop {
+            interval.tick().await;
+
+            tracing::debug!("this process is still alive");
+        }
+    });
+
     select! {
         _ = &mut run_shards => {
             Ok(())