Fix: Whitespace

[localheinz]

This PR

• fixes whitespace issues in test and production code

Follows #1.

[codecov]

Codecov Report

Merging #44 into master will not change coverage by %.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #44   +/-   ##
=========================================
  Coverage     61.22%   61.22%           
  Complexity       81       81           
=========================================
  Files             8        8           
  Lines           196      196           
=========================================
  Hits            120      120           
  Misses           76       76           

Impacted Files	Coverage Δ	Complexity Δ
src/FixtureFactory.php	91.56% <ø> (ø)	37.00 <0.00> (ø)

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