feat: Hourly metrics

[ZibanPirate]

Hourly cron job that measures lighthouse score on pages of dzcode.io and stage.dzcode.io, we can then see the progress of the score over time while we work on #302

• prd: https://lh.dzcode.io/app/projects/dzcode.io/dashboard?runUrl=https://www.dzcode.io/contribute/
• stg: https://lh-stage.dzcode.io/app/projects/dzcode.io/dashboard?runUrl=https://stage.dzcode.io/contribute/

Type of change

• [x] New feature (non-breaking change which adds functionality)