v26.6.4

What's Changed

• feat(controlplane): attach anonymized usage on license validate by @mekilis in #2715
• feat(controlplane): document projects CRUD and harden endpoint activate by @mekilis in #2716
• chore(release): prepare v26.6.4 by @mekilis in #2717
• test(dataplane): add shared webhook signature verification vectors by @mekilis in #2714

Full Changelog: v26.6.3...v26.6.4