Store oemetadata for each opr

[jh-RLI]

Summary of the discussion

We would like to maintain a history for peer reviews. Currently, the previous state is lost as soon as the metadata is updated. This PR introduces a field into the PeerReview model and adds display logic to store the oemeta data used in a particular review.

Type of change (CHANGELOG.md)

Updated

• Each open peer review now stored the oemetadata. This avoids changes to the metadata that is or was reviewed and helps to maintain a review history (#1567)

Workflow checklist

Automation

Closes #1367

PR-Assignee

• [x] 🐙 Follow the workflow in CONTRIBUTING.md
• [x] 📝 Update the CHANGELOG.md
• [ ] 📙 Update the documentation on mkdocs

Reviewer

• [ ] 🐙 Follow the Reviewer Guidelines
• [ ] 🐙 Provided feedback and show sufficient appreciation for the work done