BE: Chore: use enhanced switch

[yeikel]

A small change to take advantage of newer language features

How Has This Been Tested? (put an "x" (case-sensitive!) next to an item)

• Unit checks

Checklist (put an "x" (case-sensitive!) next to all the items, otherwise the build will fail)

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (e.g. ENVIRONMENT VARIABLES)
• My changes generate no new warnings (e.g. Sonar is happy)
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged

A picture of a cute animal (not mandatory but encouraged)

[yeikel]

A default case is not needed because we are switching on an enum. If we add new values in the future, the compiler will fail with "'switch' expression does not cover all possible input values"