v1.0.0-beta.13

Highlights:

• Fixed NotFound status reporting for deleted KCC resources (#2689)

Changelog

• a33e987 Add structs for ResourceGroup objects (#2619)
• e077c01 Correct Apache License Text (#2664)
• ef1a189 Ensure release license file exists (#2682)
• 35eb882 Fix missing colon in design doc (#2693)
• 29c0642 Update beta.12 binaries (#2655)
• 3d90e0e design doc numbering (#2657)
• 0f3db0c fix: report NotFound status for deleted KCC resources (#2689)
• e72f21e propose ownership change to facilitate PR reviews and improving kpt.dev docs (#2679)