Migrate philips_js light to ColorMode

[epenet]

Proposed change

Follow-up to #47720, needed for #69269

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
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• Breaking change (fix/feature causing existing functionality to break)
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• This PR fixes or closes issue: fixes #
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[probot-home-assistant]

Hey there @elupus, mind taking a look at this pull request as it has been labeled with an integration (philips_js) you are listed as a code owner for? Thanks!
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[epenet]

I think this was simply missed in a previous migration

[frenck]

Probably, well spotted 👍

[frenck]

Thanks, @epenet 👍