Release prep v5.5.0

[github-actions[bot]]

Automated release-prep through pdk-templates from commit cc91c73553b896586c21a9e477f90ed2a15d3bf8. Please verify before merging:

• [x] last nightly run is green
• [x] Changelog is readable and has no unlabeled pull requests
• [x] Ensure the changelog version and metadata version match

[CLAassistant]

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