Convert the test-client to async (#76)

Author: jmpesp

Cargo.lock

@@ -11,6 +11,6 @@ reqwest.workspace = true
 scim2-rs.workspace = true
 serde.workspace = true
 serde_json.workspace = true
+tokio.workspace = true
 unicase.workspace = true
 uuid.workspace = true
-

test-client/Cargo.toml

@@ -16,11 +16,12 @@ struct Args {
     bearer: Option<String>,
 }
 
-fn main() -> anyhow::Result<()> {
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
     let opt: Args = Args::try_parse()?;
 
     let tester = Tester::new(opt.url, opt.bearer)?;
-    tester.run()?;
+    tester.run().await?;
 
     println!("SUCCESS");