fn parse_expiry_date(s: &str) -> Option<i64>Expand description
Attempt to parse a Glacier restore expiry date to a Unix timestamp.
AWS returns HTTP-date strings such as "Fri, 01 Jan 2027 00:00:00 GMT".
We parse via aws_sdk_s3::primitives::DateTime which is always available
as a re-export of aws-smithy-types.
Returns None on parse failure rather than panicking on unexpected formats.