Prepare release 3.0.2

[stevenbal]

• Resolve release blockers
  • ⬆️ [#541] Upgrade kombu to 5.4.2 #542
• Upgrade open-api-framework to latest version
• Check security tab and upgrade packages to fix vulnerabilities ⬆️ Upgrade jinja2 to 3.1.6 to fix security issue #544
• Check translations
• Bump API version number (if applicable)
  • Version bump
  • Regenerate API spec
  • Update READMEs with release dates + links
• Bump version number with bin/bump-my-version.sh bump <major|minor|patch>
• Update changelog