[docs] Adding release notes for 4.5, 4.4.4 and friends

[mickhawkins]

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[github-actions]

⚡️ Lighthouse report for the deploy preview of this PR

URL	Performance	Accessibility	Best Practices	SEO	PWA	Report
/	🟠 75	🟢 95	🟢 100	🟢 90	🟢 100	Report
/docs/4.4/apis/commonfiles	🟠 53	🟢 93	🟢 100	🟢 100	🟢 100	Report
/general/development/gettingstarted	🟠 65	🟢 95	🟢 100	🟢 90	🟢 100	Report
/general/releases	🟠 53	🟢 95	🟢 100	🟢 100	🟢 100	Report

[junpataleta]

Thanks, @mickhawkins. Looking good!