act-as-setup BUILD-TYPE, warning and error

[philderbeast]

Changes the behaviour for #11456 but doesn't add to the user's guide. The act-as-setup command accepts Simple and Configure build types. If other build types are supplied anyway, it gives a warning and then an error mentioning acceptable and unacceptable build types.

- $ cabal-3.18.1.0 act-as-setup --build-type=Custom configure
+ $ cabal act-as-setup --build-type=Custom configure
- actAsSetupAction Custom
- CallStack (from HasCallStack):
-   error, called at src/Distribution/Client/Main.hs:1579:19 in
-   cabal-install-3.18.1.0-inplace:Distribution.Client.Main
+ Warning: act-as-setup accepts --build-type=Simple|Configure, case-sensitively.
+ Error: act-as-setup doesn't accept --build-type=Make|Hooks|Custom.

---

• Patches conform to the coding conventions.
• Any changes that could be relevant to users have been recorded in the changelog.
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• The documentation has been updated, if necessary.
• Manual QA notes have been included.
• Tests have been added. (Ask for help if you don’t know how to write them! Ask for an exemption if tests are too complex for too little coverage!)