chai-should: don't use Jest's alias names

[kristerkari]

Hello,

When transforming a large codebase, I noticed that when chai syntax is transformed to Jest, the matchers are using alias names instead of the default names.

There is a eslint-plugin-jest rule that can migrate the method names, but it would be good to do that by default.
https://github.com/jest-community/eslint-plugin-jest/blob/main/docs/rules/no-alias-methods.md

The alias names are possibly also getting removed from Jest (jestjs/jest#13164), so this would be a good way to future proof the code.

ping @skovhus

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (87daaa6) 92.39% compared to head (f9ee6e8) 92.39%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #502   +/-   ##
=======================================
  Coverage   92.39%   92.39%           
=======================================
  Files          26       26           
  Lines        1934     1934           
  Branches      404      404           
=======================================
  Hits         1787     1787           
  Misses        101      101           
  Partials       46       46           

Impacted Files	Coverage Δ
src/transformers/chai-should.ts	94.78% <100.00%> (ø)

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