chore(shortint): use TEST_ params as much as possible in tests

[nsarlin-zama]

closes: please link all relevant issues

PR content/description

shortint use a mix of test and default params.

I asked Claude to do a review of the params used in shortint _ci_run_filter tests before the pr:

  ┌──────────────────────┬───────┐
  │       Category       │ Count │
  ├──────────────────────┼───────┤
  │ No params            │ 9     │
  ├──────────────────────┼───────┤
  │ TEST_ only           │ 17    │
  ├──────────────────────┼───────┤
  │ PARAM_ only          │ 10    │
  ├──────────────────────┼───────┤
  │ Mixed TEST_ + PARAM_ │ 3     │
  ├──────────────────────┼───────┤
  │ Total                │ 39    │
  └──────────────────────┴───────┘

This pr standardises this and try to use TEST_ params as much as possible.

Should be merged after #3474

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This change is 

[nsarlin-zama]

changed some TEST_ params to point to the corresponding default param defined in aliases.rs. That way we make sure that default params are always tested

[IceTDrinker]

Thanks !

@IceTDrinker reviewed 7 files and all commit messages, and made 1 comment.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on mayeul-zama).