June 2023 newsletter - open for ideas

[benjaoming]

• [x] Add all roadmap items deployed
• [x] Security advisories
• [x] Upcoming changes
• [x] Awesome project of the month
• [x] Possible issues
• [x] TLS 1.2 update
• [x] /en/ to /en/latest/ redirect
• [x] Attractive screenshot

[humitos]

We should probably mention https://github.com/readthedocs/readthedocs.org/issues/10351 ⚠️ in the newsletter and point users to this blog post https://github.com/readthedocs/blog/pull/219 so they can add the .readthedocs.yaml file to their projects.