Capture web vitals attribution data

[abeddow91]

Use the events collector to send more accurate attribution data for our web vitals

### Tasks
- [x] Add a  new route for web vitals in the event collector
- [x] Create a new temporary table - see https://github.com/guardian/data-platform-models/pull/5270 for example set up
- [ ] List Nophan in the CMP for Web and Apps
- [ ] Update web vital posting in DCR to include attribution data