Fix recert failing because of non-existent managedFields

Signed-off-by: Michail Resvanis <mresvani@redhat.com>

src/ocp_postprocess/hostname_rename/etcd_rename.rs

@@ -65,18 +65,12 @@ async fn fix_etcd_all_certs_secret(etcd_client: &Arc<InMemoryK8sEtcd>, key: &str
             .iter()
             .flat_map(|prefix| suffixes.iter().map(move |suffix| format!("{}{}{}", prefix, new_hostname, suffix)));
 
-        old_keys
-            .zip(new_keys)
-            .map(|(old_key, new_key)| {
-                let value = data
-                    .remove(&old_key)
-                    .context(format!("could not remove key: {}", old_key))
-                    .context("key not found")?;
+        old_keys.zip(new_keys).for_each(|(old_key, new_key)| {
+            // optionally try to replace fields, as we have seen managedFields missing
+            if let Some(value) = data.remove(&old_key) {
                 data.insert(new_key, value);
-                Ok(())
-            })
-            .collect::<Result<Vec<_>>>()
-            .context("Failed to replace keys")?;
+            }
+        });
 
         Ok(())
     }