downgraded chardet

[fpgmaas]

PR Checklist

• A description of the changes is added to the description of this PR.
• If there is a related issue, make sure it is linked to this PR.
• If you've fixed a bug or added code that should be tested, add tests!
• Documentation in docs is updated

Description of changes

[codecov-commenter]

Codecov Report

Merging #205 (e77f7c4) into main (ad5f767) will not change coverage.
The diff coverage is n/a.

❗ Current head e77f7c4 differs from pull request most recent head 3c159b7. Consider uploading reports for the commit 3c159b7 to get more accurate results

@@          Coverage Diff          @@
##            main    #205   +/-   ##
=====================================
  Coverage   95.5%   95.5%           
=====================================
  Files         29      29           
  Lines        920     920           
  Branches     207     207           
=====================================
  Hits         879     879           
  Misses        27      27           
  Partials      14      14           

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