95421: Operator version conflict

The operator could not be updated due to a version conflict.

• Operator was modified by another request since it was last fetched.
• The If-Match header does not match the current operator version.
• Concurrent updates to the same operator.

• Fetch the latest operator version before updating.
• Use the current ETag value in the If-Match header.
• Implement retry logic with fresh data on conflict errors.