Fix test for trivial `minpuc` argument in `quickpred`

[stephematician]

Use any(minpuc != 0) which supports scalar, vector, and matrix in the short-circuit test for trivial minpuc.

Added tests that check that the basic types for each argument (as documented) are supported. Also added a test to check that the return value is as per documentation (square, binary matrix).

[stephematician]

1. No idea why ubuntu-latest is failing at the dependency action.

2. On my machine, another test fails:

   ── Failed tests ─────────────────────────────────────────────────────────────── Failure (test-parlmice.R:15:3): Imputations are equal between mice and parlmice complete(C, "long") not identical to complete(D, "long"). Component “bmi”: Mean relative difference: 0.1664327 Component “hyp”: Mean relative difference: 0.6666667 Component “chl”: Mean relative difference: 0.1966936

   [ FAIL 1 | WARN 0 | SKIP 0 | PASS 383 ]

[stephematician]

Removing Matrix extra dependency in R-CMD-check does (seem to) fix the workflow.

[stefvanbuuren]

Thanks!