Bump tzlocal from 1.5.1 to 2.1

[dependabot]

Bumps tzlocal from 1.5.1 to 2.1.

Changelog

Sourced from tzlocal's changelog.

2.1 (2020-05-08)

• No changes.

2.1b1 (2020-02-08)

• The is_dst flag is wrong for Europe/Dublin on some Unix releases. I changed to another way of determining if DST is in effect or not.

• Added support for Python 3.7 and 3.8. Dropped 3.5 although it still works.

2.0.0 (2019-07-23)

• No differences since 2.0.0b3

Major differences since 1.5.1 .............................

• When no time zone configuration can be find, tzlocal now return UTC. This is a major difference from 1.x, where an exception would be raised. This change is because Docker images often have no configuration at all, and the unix utilities will then default to UTC, so we follow that.

• If tzlocal on Unix finds a timezone name in a /etc config file, then tzlocal now verifies that the timezone it fouds has the same offset as the local computer is configured with. If it doesn't, something is configured incorrectly. (Victor Torres, regebro)

• Get timezone via Termux getprop wrapper on Android. It's not officially supported because we can't test it, but at least we make an effort. (Jean Jordaan)

Minor differences and bug fixes ...............................

• Skip comment lines when parsing /etc/timezone. (Edward Betts)

• Don't load timezone from current directory. (Gabriel Corona)

• Now verifies that the config files actually contain something before reading them. (Zackary Welch, regebro)

• Got rid of a BytesWarning (Mickaël Schoentgen)

• Now handles if config file paths exists, but are directories.

... (truncated)

Commits

• e780424 Preparing release 2.1
• d7257a8 Back to development: 2.1b2
• dd79171 Preparing release 2.1b1
• 16766eb Python 3.7 and 3.8 support (#85)
• 4e90670 Figure out which zone is in effect, by comparing gmtime() and localtime() (#84)
• c64930a Update windows_tz.py mappings (#82)
• d4bbb4b Fixed SyntaxWarning on Python 3.8 (#77)
• 5c5e35e Back to development: 2.0.1
• 4634197 Preparing release 2.0.0
• 7daea3e Releasing 2.0.0
• Additional commits viewable in compare view

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[dependabot]

Superseded by #135.