v0.7.0

What's Changed

• ci(security): add Security scanning workflow by @scttfrdmn in #57
• ci(security): make Semgrep enforcing (--error) (#368) by @scttfrdmn in #60
• feat: forward ext.az to spawn launch --az (pin task placement to an AZ) (#62) by @scttfrdmn in #63
• chore(release): v0.7.0 by @scttfrdmn in #64

Full Changelog: v0.6.0...v0.7.0