CRM: Disable sourcemap generation

[tbradsha]

This disables the generation of sourcemap files.

Proposed changes:

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Testing instructions:

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Code Coverage Summary

This PR did not change code coverage!

That could be good or bad, depending on the situation. Everything covered before, and still is? Great! Nothing was covered before? Not so great. 🤷

Full summary · PHP report

[mikestottuk]

👍