[MRG] Update to DICOM 2023e

[scaramallion]

Reference issue

Updates to 2023e version of DICOM, closes #892

Tasks

• Fix or feature added
• Documentation and examples updated (if relevant)
• Unit tests passing and coverage at 100% after adding fix/feature

[codecov]

Codecov Report

Merging #894 (ef75fc9) into main (60088e7) will not change coverage.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #894   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           28        28           
  Lines         8703      8703           
=========================================
  Hits          8703      8703           

Files	Coverage Δ
pynetdicom/_globals.py	100.00% <ø> (ø)
pynetdicom/_version.py	100.00% <100.00%> (ø)
pynetdicom/sop_class.py	100.00% <ø> (ø)