Update tzinfo requirement from ~> 1.2 to >= 1.2, < 3.0

[dependabot-preview]

Updates the requirements on tzinfo to permit the latest version.

Release notes

Sourced from tzinfo's releases.

v2.0.1

• Fixed "SecurityError: Insecure operation - require" exceptions when loading data with recent Ruby releases in safe mode. #100.
• Fixed warnings when running on Ruby 2.7. #109.
• Add a TZInfo::Timezone#=~ method that performs a regex match on the time zone identifier. #99.
• Add a TZInfo::Country#=~ method that performs a regex match on the country code.

TZInfo v2.0.1 on RubyGems.org

Changelog

Sourced from tzinfo's changelog.

Version 2.0.1 - 24-Dec-2019

• Fixed "SecurityError: Insecure operation - require" exceptions when loading data with recent Ruby releases in safe mode. #100.
• Fixed warnings when running on Ruby 2.7. #109.
• Add a TZInfo::Timezone#=~ method that performs a regex match on the time zone identifier. #99.
• Add a TZInfo::Country#=~ method that performs a regex match on the country code.

Version 2.0.0 - 26-Dec-2018

Added

• to_local and period_for instance methods have been added to TZInfo::Timezone. These are similar to utc_to_local and period_for_utc, but take the UTC offset of the given time into account.
• abbreviation, dst?, base_utc_offset and observed_utc_offset instance methods have been added to TZInfo::Timezone, returning the abbreviation, whether daylight savings time is in effect and the UTC offset of the time zone at a specified time.
• A TZInfo::Timestamp class has been added. It can be used with TZInfo::Timezone in place of a Time or DateTime.
• local_time, local_datetime and local_timestamp instance methods have been added to TZInfo::Timezone. These methods construct local Time, DateTime and TZInfo::Timestamp instances with the correct UTC offset and abbreviation for the time zone.
• Support for a (yet to be released) version 2 of tzinfo-data has been added, in addition to support for version 1. The new version will remove the (no longer needed) DateTime parameters from transition times, reduce memory consumption and improve the efficiency of loading timezone and country indexes.
• A TZInfo::VERSION constant has been added, indicating the TZInfo version number.

Changed

• The minimum supported Ruby versions are now Ruby MRI 1.9.3, JRuby 1.7 (in 1.9 or later mode) and Rubinius 3.
• Local times are now returned using the correct UTC offset (instead of using UTC). #49 and #52.
• Local times are returned as instances of TimeWithOffset, DateTimeWithOffset or TZInfo::TimestampWithOffset. These classes subclass Time, DateTime and TZInfo::Timestamp respectively. They override the default behaviour of the base classes to return information about the observed offset at the indicated time. For example, the zone abbreviation is returned when using the %Z directive with strftime.
• The transitions_up_to, offsets_up_to and strftime instance methods of TZInfo::Timezone now take the UTC offsets of given times into account (instead of ignoring them as was previously the case).

... (truncated)

Commits

• 16b0ff8 Preparing v2.0.1.
• 7fb891c Add the v1.2.6 release from the 1.2 branch.
• d4e08a0 Replace expired gem signing certificate.
• 23a8566 Allow newer versions of Rake that fix warnings with Ruby 2.7.
• 82327d2 Update to Ruby 2.7.0-rc2.
• 71998e8 Improve comments.
• 2fa1ff5 Fix test failures with JRuby 9.2.9.0 and RubyGems >= 3.1.0.
• 6c98e49 Revert "Update to Ruby 2.7.0rc1."
• 03a86bd Update to Ruby 2.7.0rc1.
• 26db735 Change the criteria for loading UntaintExt.
• Additional commits viewable in compare view

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[coveralls]

Pull Request Test Coverage Report for Build 31

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.0005%) to 99.553%

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Totals
Change from base Build 29:	-0.0005%
Covered Lines:	445
Relevant Lines:	447

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💛 - Coveralls