Draft: Format ID in strings as upper case [RUN AS-IF-FOSS]

What does this MR do?

Change the capitalization of the string id in printed strings and code comments as ID.

Close #233058 (closed)

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Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
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• Tested in all supported browsers
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• Label as security and @ mention @gitlab-com/gl-security/appsec
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