Perform community review score rounding on the backend

[mike-mcnulty]

Fund ops team requesting that community review scores for impact / feasibility / value stored on the backend be rounded to 1 decimal place

See discussion in jira ticket here: https://input-output.atlassian.net/browse/NPG-8046

Question: should this be done during the import from ideascale, or in some other part of the process?

Feel free to reach out to @danielribar for any questions / additional context