v0.6.0

What's Changed

• docs: release verification, coding standard, test policy and assurance case by @Yoshiofthewire in #12
• fix: bounded cluster ServiceAccount, trimmed put-secret, digest check by @Yoshiofthewire in #14
• docs: add license, contributing, security, and code of conduct by @Yoshiofthewire in #15
• Publish OpenSSF Scorecard and add security badges by @Yoshiofthewire in #16
• Require strong SSH negotiation in launcher and helpers by @Yoshiofthewire in #17
• release: v0.6.0 by @Yoshiofthewire in #18

Full Changelog: v0.5.0...v0.6.0