Bump django-extensions from 2.2.6 to 2.2.9

[dependabot-preview[bot]]

Bumps django-extensions from 2.2.6 to 2.2.9.

Changelog

Sourced from django-extensions's changelog.

2.2.9

Changes:

• Fix: shell_plus, move notebook down the list of prefered shells
• Fix: sqldiff, fix KeyError when detecting missing (unique) indexes
• Improvement: encrypted fields, make it harder to use deprecated keyczar fields
• Locale: Removed empty localizations

2.2.8

Changes:

• Locale: zh_Hans, removed as it generated UnicodeDecodeError errors (#1478)

2.2.7

Changes:

• Improvement: shell_plus, #865 always add manage.py basedir to path for notebook kernel
• Improvement: docs, add zh-Hans locale
• Improvement: runserver_plus, fix broken import for werkzeug v1.0.0
• Improvement: runserver_plus, #1461 fix always trying to load StaticFilesHandler
• Improvement: pipchecker, #1471 fix import of PipSession

Commits

• c2f200a v2.2.9
• e990150 Merge pull request #1504 from timgates42/bugfix_typo_writable
• 960ec91 docs: Fix simple typo, writeable -> writable
• 37b356d Merge pull request #1502 from dcecco/issue-1501-sqldiff-keyerror
• b6f3fa9 Resolving issue #1501
• e8d5daa move notebook down the list of prefered shells
• 97c578a Create FUNDING.yml
• 1dd38e8 Merge pull request #1495 from Flimm/document_validate_templates
• c65a155 Merge pull request #1494 from Flimm/patch-1
• 1c30086 reintroduce django_extensions.db.fields.encrypted to shell_plus import blacklist
• Additional commits viewable in compare view

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[dependabot-preview[bot]]

Superseded by #1300.