chore(vcs/gerrit/ssh): add more error reporting when creating the SSH master

Otherwise, it's hard to debug.

Signed-off-by: Raito Bezarius <masterancpp@gmail.com>

ofborg/src/vcs/gerrit/ssh.rs

@@ -19,7 +19,12 @@ impl GerritSSHApi {
         let tempdir = builder
             .launch_master(destination)
             .await
-            .unwrap_or_else(|_| panic!("Failed to launch SSH master to destination '{}'", uri));
+            .unwrap_or_else(|e| {
+                panic!(
+                    "Failed to launch SSH master to destination '{}' due to '{}'",
+                    uri, e
+                )
+            });
         Self {
             session: Session::new_process_mux(tempdir),
         }