wix: allow to skip more components

[klensy]

Initially this fixed try builds for dist-x86_64-msvc when i played with it #133033 (comment)

Looking at errors, it should probably fix issues with beta\stable bumps too: #133447 (comment) #135163 (comment)

This makes tools like clippy/rustfmt/(and miri, which is nightly only component)/etc optional for msi, so they can be turned on/off by dist.

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[Mark-Simulacrum]

What is this referring to? I don't think we use (s?)ccache for Wix invocations?

It's also not clear to me what we mean by "should always be defined even if not used". Can you elaborate? What happens if we get that wrong?

[klensy]

Reference to sccache because this comment from pr with attempt to bump sccache, should be deleted.

As for "defined" - wix fails to build if it can't find all associated with components env vars. i.e. for rustfmt - which is optional, env var CFG_RUSTFMT should be always set (with 1 or 0 value), doesn't matter if it rustfmt component build or not. Hmm, need rephrase this.