Update Scalar-List-Utils to CPAN version 1.54

Update Scalar-List-Utils to CPAN version 1.54

  [DELTA]

1.54 -- 2020-02-02 15:47
  [CHANGES]
   * Added List::Util::reductions (RT128237)
   * Added List::Util::sample (RT131535)
   * Recognise $List::Util::RAND as a source of randomness for sampling
     functions (RT131536)

  [BUGFIXES]
   * Document the difference between ref() and reftype() on precompiled
     qr// regexps (RT127963)
   * Various improvements to List::Util::uniqnum() to handle stringified
     Inf and NaN, negative zero
   * Detect platform NV size and number of digits required to calculate
     uniqueness