fix: wrap errors in data[] (#2834)

Signed-off-by: Moritz Johner <beller.moritz@googlemail.com>
Co-authored-by: HamzaMasood1 <hamzamasood183@gmail.com>

pkg/controllers/externalsecret/externalsecret_controller_secret.go

@@ -81,7 +81,7 @@ func (r *Reconciler) getProviderSecretData(ctx context.Context, externalSecret *
 			continue
 		}
 		if err != nil {
-			return nil, err
+			return nil, fmt.Errorf("error retrieving secret at .data[%d], key: %s, err: %w", i, secretRef.RemoteRef.Key, err)
 		}
 	}