Bump django-auth-ldap from 1.4.0 to 2.2.0 in /cvat/requirements

[dependabot-preview]

Bumps django-auth-ldap from 1.4.0 to 2.2.0.

Changelog

Sourced from django-auth-ldap's changelog.

2.2.0 - 2020-06-02

• Added support for the escape argument in LDAPSearchUnion.execute().

2.1.1 - 2020-03-26

• Removed drepecated providing_args from Signal instances.

2.1.0 - 2019-12-03

• Reject authentication requests without a username.
• Added support for Django 3.0 and Python 3.8.
• Removed support for end of life Django 2.1.

2.0.0 - 2019-06-05

• Removed support for Python 2 and 3.4.
• Removed support for end of life Django 2.0.
• Added support for Django 2.2.
• Add testing and support for Python 3.7 with Django 1.11 and 2.1.
• When :setting:AUTH_LDAP_SERVER_URI is set to a callable, it is now passed a positional request argument. Support for no arguments will continue for backwards compatibility but will be removed in a future version.
• Added new :setting:AUTH_LDAP_NO_NEW_USERS to prevent the creation of new users during authentication. Any users not already in the Django user database will not be able to login.

1.6.1 - 2018-06-02

• Renamed requirements.txt to dev-requirements.txt to fix Read the Docs build.

1.6.0 - 2018-06-02

• Updated LDAPBackend.authenticate() signature to match Django's documentation.
• Fixed group membership queries with DNs containing non-ascii characters on Python 2.7.
• The setting :setting:AUTH_LDAP_CACHE_TIMEOUT now replaces deprecated AUTH_LDAP_CACHE_GROUPS and AUTH_LDAP_GROUP_CACHE_TIMEOUT. In addition to caching groups, it also controls caching of distinguished names (which were previously cached by default). A compatibility shim is provided so the deprecated settings will continue to work.

1.5.0 - 2018-04-18

... (truncated)

Commits

• 820c11f Prepare for the next release
• bfd5faa Blacken
• 7615ed1 Support the escape argument in LDAPSearchUnion.execute
• b584c9f Bump version for release
• 15364ea Remove deprecated providing_args to Signal
• f49ded3 Fixed typo in documentation.
• 49e5c1f Added an example to :setting:AUTH_LDAP_USER_QUERY_FIELD for clarity.
• 9909077 Prepare for next release
• 1b34f91 Test Django 2.2 with Python 3.8
• b176094 Replace .class with type()
• Additional commits viewable in compare view

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[coveralls]

Pull Request Test Coverage Report for Build 5881

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 65.822%

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Totals
Change from base Build 5855:	0.0%
Covered Lines:	10916
Relevant Lines:	16181

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💛 - Coveralls

[nmanovic]

@azhavoro , could you please look at the patch? Does it work for our internal infrastructure?

[nmanovic]

BTW, I will merge it but please be aware that it can break our LDAP integration.