Enhancement: Update license year

[localheinz]

This PR

• updates the license year

[codecov]

Codecov Report

Merging #265 (0eddb21) into main (31522dd) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main     #265   +/-   ##
=========================================
  Coverage     98.87%   98.87%           
  Complexity       58       58           
=========================================
  Files            14       14           
  Lines           178      178           
=========================================
  Hits            176      176           
  Misses            2        2           

Impacted Files	Coverage Δ	Complexity Δ
src/Exception/InvalidFile.php	100.00% <ø> (ø)	3.00 <0.00> (ø)
src/Exception/InvalidHolder.php	100.00% <ø> (ø)	2.00 <0.00> (ø)
src/Exception/InvalidRange.php	100.00% <ø> (ø)	2.00 <0.00> (ø)
src/Exception/InvalidReplacements.php	100.00% <ø> (ø)	2.00 <0.00> (ø)
src/Exception/InvalidUrl.php	100.00% <ø> (ø)	1.00 <0.00> (ø)
src/Exception/InvalidYear.php	100.00% <ø> (ø)	1.00 <0.00> (ø)
src/File.php	100.00% <ø> (ø)	5.00 <0.00> (ø)
src/Header.php	100.00% <ø> (ø)	3.00 <0.00> (ø)
src/Holder.php	100.00% <ø> (ø)	5.00 <0.00> (ø)
src/Range.php	100.00% <ø> (ø)	8.00 <0.00> (ø)
... and 4 more

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