Fix: Rename method

[localheinz]

This pull request

• renames a method

[codecov]

Codecov Report

Merging #5 (836b334) into main (cab2b33) will not change coverage.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##                main        #5   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity        19        19           
===========================================
  Files              4         4           
  Lines             53        53           
===========================================
  Hits              53        53           

Impacted Files	Coverage Δ
src/Exception/InvalidReferenceToken.php	100.00% <100.00%> (ø)
src/ReferenceToken.php	100.00% <100.00%> (ø)

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