Fix clippy warning

I would prefer to `allow(clippy::doc_overindented_list_items)`
however this lint is too recent.

Signed-off-by: Didier Wenzek <didier.wenzek@free.fr>

Author: didier-wenzek

crates/core/tedge/src/cli/certificate/cli.rs

@@ -80,7 +80,7 @@ pub enum TEdgeCertCli {
     ///
     /// Exit code:
     /// * `0` - certificate needs renewal as it is no longer valid,
-    ///         or it will expire within the duration, `certificate.validity.minimum_duration`
+    ///   or it will expire within the duration, `certificate.validity.minimum_duration`
     /// * `1` - certificate is still valid and does not need renewal
     /// * `2` - unexpected error (e.g. certificate does not exist, or can't be read)
     NeedsRenewal {

crates/extensions/c8y_auth_proxy/src/server.rs

@@ -1036,7 +1036,7 @@ mod tests {
         let body = "A body";
         let res = reqwest_client()
             .put(format!("https://localhost:{port}/c8y/hello"))
-            .header("Content-Length", body.bytes().len())
+            .header("Content-Length", body.len())
             .body(body)
             .send()
             .await