beets: make beets command async

src/artifacts/beets.rs

@@ -1,4 +1,6 @@
-use std::process::{Command, Stdio};
+use std::process::Stdio;
+
+use tokio::process::Command;
 
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
@@ -111,7 +113,7 @@ impl DataSource for BeetsDB {
         }
 
         log::debug!("Executing beets: {:?}", beets_cmd);
-        if let Ok(output) = beets_cmd.stdout(Stdio::piped()).stderr(Stdio::null()).spawn().unwrap().wait_with_output() {
+        if let Ok(output) = beets_cmd.stdout(Stdio::piped()).stderr(Stdio::null()).spawn().unwrap().wait_with_output().await {
             match serde_json::from_str::<Vec<BeetsTrack>>(str::from_utf8(&output.stdout).unwrap()) {
                 Ok(track) => Ok(track.into_iter().map(|t| { t.into()}).collect()),
                 Err(err) => {