chore(deps): bump pycryptodome from 3.9.6 to 3.9.9

[dependabot-preview[bot]]

Bumps pycryptodome from 3.9.6 to 3.9.9.

Changelog

Sourced from pycryptodome's changelog.

3.9.9 (2 November 2020)

Resolved issues

• GH#435: Fixed Crypto.Util.number.size for negative numbers.

New features

• Build Python 3.9 wheels on Windows.

3.9.8 (23 June 2020)

Resolved issues

• GH#426: The Shamir's secret sharing implementation is not actually compatible with ssss. Added an optional parameter to enable interoperability.
• GH#427: Skip altogether loading of gmp.dll on Windows.
• GH#420: Fix incorrect CFB decryption when the input and the output are the same buffer.

New features

• Speed up Shamir's secret sharing routines. Thanks to ncarve.

3.9.7 (20 February 2020)

Resolved issues

• GH#381: Make notarization possible again on OS X when using wheels. Thanks to Colin Atkinson.

Commits

• ca24707 Bump version and update changelog
• 8d345f7 Build wheels for Python 3.9 on Windows
• 4a64796 add github source url
• 28c3af4 Fix Crypto.Util.number for negative integers (GH#435)
• 2f3fdf5 Fix stub file for PKCS#1v1.5 encryption (GH#442)
• bfbdf3b Fix incorrect title case on "from" word
• 516a999 Better exception message for DER decoding
• f3e8147 Merge branch 'janaknat-master'
• 04c2332 Simplify travis.yml for aarch64
• 09815af Add aarch64 travis-ci build config
• Additional commits viewable in compare view

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[dependabot-preview[bot]]

Superseded by #53.