Update dependency xmltodict to v0.13.0

This MR contains the following updates:

Package	Type	Update	Change
xmltodict	ironbank-pypi	minor	0.12.0 -> 0.13.0

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Release Notes

martinblech/xmltodict

v0.13.0

Compare Source

• Add install info to readme for openSUSE. (#​205)
  • Thanks, @​smarlowucf!
• Support defaultdict for namespace mapping (#​211)
  • Thanks, @​nathanalderson!
• parse(generator) is now possible (#​212)
  • Thanks, @​xandey!
• Processing comments on parsing from xml to dict (connected to #​109) (#​221)
  • Thanks, @​svetazol!
• Add expand_iter kw to unparse to expand iterables (#​213)
  • Thanks, @​claweyenuk!
• Fixed some typos
  • Thanks, @​timgates42 and @​kianmeng!
• Add support for python3.8
  • Thanks, @​t0b3!
• Drop Jython/Python 2 and add Python 3.9/3.10.
• Drop OrderedDict in Python >= 3.7
• Do not use len() to determine if a sequence is empty
  • Thanks, @​DimitriPapadopoulos!
• Add more namespace attribute tests
  • Thanks, @​leogregianin!
• Fix encoding issue in setup.py
  • Thanks, @​rjarry!

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