fix: support .toHaveProperty('')

[chentsulin]

Summary

When I try using .toHaveProperty() with an empty string:

expect({ '': 1 }).toHaveProperty('', 1);

It gets the following error:

    expect(received).toHaveProperty(path, value)

    Expected path: ""

    Expected value: 1
    Received value: {"": 1}

I believe it's a bug.

Test plan

Added a failed test.

[chentsulin]

This regression was introduced by v27.4.0. I can confirm it works in v27.3.0

[chentsulin]

Added a quick fix for the regression. @SimenB

[codecov-commenter]

Codecov Report

Merging #12251 (78beae9) into main (5d483ce) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main   #12251   +/-   ##
=======================================
  Coverage   67.51%   67.51%           
=======================================
  Files         328      328           
  Lines       17246    17249    +3     
  Branches     5071     5072    +1     
=======================================
+ Hits        11643    11646    +3     
  Misses       5570     5570           
  Partials       33       33           

Impacted Files	Coverage Δ
packages/expect/src/utils.ts	96.09% <100.00%> (+0.05%)	⬆️

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[SimenB]

awesome, thanks!

[github-actions]

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