Format Pulse profile ID as string

[TheoChevalier]

Closes #7353

This forces the value to be treated as a string instead of a number, because USE_THOUSAND_SEPARATOR is set to true, and does apply the locale’s formatting rules to numbers.

Test page: https://foundation-s-thousand-s-zekjmo.herokuapp.com/en/campaigns/test-page/

[github-actions]

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[Pomax]

While this fixes the symptom, this leaves the original problem in place, so I'd rather we find out why this is templating in with locale number formatting, despite the absence of any filter instructing it to do so.

[Pomax]

Approving as immediate remediation, but we need to turn this behaviour off and be explicit in our templates when we need localised numerical strings - #7355 has been filed to address that.