Increase deeply read right column test to 15 percent

[DanielCliftonGuardian]

What does this change?

Increase deeply read right column test to 15 percent Part of https://github.com/guardian/dotcom-rendering/issues/10746

Screenshots

N/A

Checklist

• [ ] Tested locally, and on CODE if necessary
• [ ] Will not break dotcom-rendering
• [ ] Will not break our database – if updating CAPI, updated and committed the database files
• [ ] Meets our accessibility standards
  • [ ] Tested with screen reader
  • [ ] Navigable with keyboard
  • [ ] Colour contrast passed

[github-actions[bot]]

Deploy build 2069 of dotcom:frontend-all to CODE

All deployment options

- [Deploy build 2069 of `dotcom:frontend-all` to CODE](https://riffraff.gutools.co.uk/deployment/deployAgain?project=dotcom%3Afrontend-all&build=2069&stage=CODE&updateStrategy=MostlyHarmless&action=deploy) - [Deploy parts of build 2069 to CODE by previewing it first](https://riffraff.gutools.co.uk/preview/yaml?project=dotcom%3Afrontend-all&build=2069&stage=CODE&updateStrategy=MostlyHarmless) - [What's on CODE right now?](https://riffraff.gutools.co.uk/deployment/history?projectName=dotcom%3Afrontend-all&stage=CODE)

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From guardian/actions-riff-raff.

[prout-bot]

Seen on FRONTS-PROD (merged by @DanielCliftonGuardian 10 minutes and 43 seconds ago)

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[prout-bot]

Seen on ADMIN-PROD (merged by @DanielCliftonGuardian 10 minutes and 48 seconds ago)

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• Keep an eye on the deploy dashboard&_a=(description:'',filters:!(),fullScreenMode:!f,options:(darkTheme:!f,useMargins:!f),panels:!((gridData:(h:4,i:'4',w:6,x:6,y:0),id:'735f9ce0-4a04-11e7-9f15-395e2d1c9b1f',panelIndex:'4',type:visualization,version:'6.2.4'),(gridData:(h:4,i:'5',w:6,x:0,y:0),id:b9249830-4a03-11e7-91e8-2fbfd59c38bb,panelIndex:'5',type:visualization,version:'6.2.4'),(gridData:(h:4,i:'7',w:6,x:0,y:4),id:ac507b90-4a0f-11e7-9f15-395e2d1c9b1f,panelIndex:'7',type:visualization,version:'6.2.4'),(gridData:(h:4,i:'9',w:6,x:6,y:4),id:a5f78860-4ad2-11e7-9930-73b4968e85d8,panelIndex:'9',type:visualization,version:'6.2.4')),query:(language:lucene,query:(query_string:(analyze_wildcard:!t,query:'stage:PROD%20NOT%20app:preview'))),timeRestore:!f,title:'Frontend%20PROD%20Deploy',viewMode:view)) 📉