Apply fixes from StyleCI

[kylekatarnls]

This pull request applies code style fixes from an analysis carried out by StyleCI.

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0fad569) 98.42% compared to head (953d470) 98.42%.

❗ Current head 953d470 differs from pull request most recent head ec98d90. Consider uploading reports for the commit ec98d90 to get more accurate results

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Additional details and impacted files

@@                     Coverage Diff                      @@
##             feature/date-ranges-input     #222   +/-   ##
============================================================
  Coverage                        98.42%   98.42%           
  Complexity                         343      343           
============================================================
  Files                               24       24           
  Lines                              827      827           
============================================================
  Hits                               814      814           
  Misses                              13       13           

Files	Coverage Δ
src/DateTimeRange.php	100.00% <100.00%> (ø)
src/OpeningHours.php	97.50% <ø> (ø)
src/Time.php	100.00% <ø> (ø)

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