v1.6.4

What's Changed

• build(deps): vipsgen 1.2.1 by @cshum in #639
• feat(httploader): Add Stater interface implementation for modified-time-check support by @pavolbednar in #646
• build(deps): go 1.25.3, update go deps by @cshum in #649
• feat: crop(left,top,width,height) filter by @cshum in #648

Full Changelog: v1.6.3...v1.6.4