salesforce: move toUTF8 out to utils

[josephjclark]

Summary

This PR moves to toUTF8 function out into the utils object.

toUTF8 is not an operation and cannot be called at the top level. I am trying to establish a convention where non-operations (regular functions) exist on the util. object. This should make usage clearer across the adaptors.

Fixes #877

AI Usage

Please disclose how you've used AI in this work (it's cool, we just want to know!):

• Code generation (copilot but not intellisense)
• Learning or fact checking
• Strategy / design
• Optimisation / refactoring
• Translation / spellchecking / doc gen
• Other
• I have not used AI

You can read more details in our Responsible AI Policy

[mtuchi]

Thanks for this comment, i was wondering whey we need execute() for this test

[mtuchi]

Hiya @josephjclark tested the changes everything seems fine, Just a tiny thing i spotted
If you run pnpm i & pnpm build there are changes in ast.json file. Can you double check in your machine if that's a case ?

[josephjclark]

@mtuchi weird - this is probably something on the base branch rather than here 🤔 But I've committed the updated ast - thanks for keeping your eyes open!