Update all dependencies

This MR contains the following updates:

Package	Update	Change
chardet	major	==4.0.0 -> ==5.0.0
charset-normalizer	minor	~=2.0.0 -> ~=2.1.0

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Release Notes

chardet/chardet

v5.0.0

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⚠️ This release is the first release of chardet that no longer supports Python < 3.6 ⚠️

In addition to that change, it features the following user-facing changes:

• Added a prober for Johab Korean (#​207, @​grizlupo)
• Added a prober for UTF-16/32 BE/LE (#​109, #​206, @​jpz)
• Added test data for Croatian, Czech, Hungarian, Polish, Slovak, Slovene, Greek, and Turkish, which should help prevent future errors with those languages
• Improved XML tag filtering, which should improve accuracy for XML files (#​208)
• Tweaked SingleByteCharSetProber confidence to match latest uchardet (#​209)
• Made detect_all return child prober confidences (#​210)
• Updated examples in docs (#​223, @​domdfcoding)
• Documentation fixes (#​212, #​224, #​225, #​226, #​220, #​221, #​244 from too many to mention)
• Minor performance improvements (#​252, @​deedy5)
• Add support for Python 3.10 when testing (#​232, @​jdufresne)
• Lots of little development cycle improvements, mostly thanks to @​jdufresne

ousret/charset_normalizer

v2.1.0

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Added

• Output the Unicode table version when running the CLI with --version (MR #​194)

Changed

• Re-use decoded buffer for single byte character sets from @​nijel (MR #​175)
• Fixing some performance bottlenecks from @​deedy5 (MR #​183)

Fixed

• Workaround potential bug in cpython with Zero Width No-Break Space located in Arabic Presentation Forms-B, Unicode 1.1 not acknowledged as space (MR #​175)
• CLI default threshold aligned with the API threshold from @​oleksandr-kuzmenko (MR #​181)

Removed

• Support for Python 3.5 (MR #​192)

Deprecated

• Use of backport unicodedata from unicodedata2 as Python is quickly catching up, scheduled for removal in 3.0 (MR #​194)

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