Update activesupport requirement from ~> 4.2 to >= 4.2, < 7.0

[dependabot-preview]

Updates the requirements on activesupport to permit the latest version.

Release notes

Sourced from activesupport's releases.

5.2.3

Active Support

• Add ActiveSupport::HashWithIndifferentAccess#assoc.

  assoc can now be called with either a string or a symbol.

  Stefan Schüßler

• Fix String#safe_constantize throwing a LoadError for incorrectly cased constant references.

  Keenan Brock

• Allow Range#=== and Range#cover? on Range

  Range#cover? can now accept a range argument like Range#include? and
  Range#===. Range#=== works correctly on Ruby 2.6. Range#include? is moved
  into a new file, with these two methods.

  utilum

• If the same block is included multiple times for a Concern, an exception is no longer raised.

  Mark J. Titorenko, Vlad Bokov

Active Model

• Fix date value when casting a multiparameter date hash to not convert
  from Gregorian date to Julian date.

  Before:

  Day.new({"day(1i)"=>"1", "day(2i)"=>"1", "day(3i)"=>"1"})
  => #<Day id: nil, day: "0001-01-03", created_at: nil, updated_at: nil>
  

  After:

  Day.new({"day(1i)"=>"1", "day(2i)"=>"1", "day(3i)"=>"1"})
  => #<Day id: nil, day: "0001-01-01", created_at: nil, updated_at: nil>
  

  Fixes #28521.

  Sayan Chakraborty

• Fix numericality equality validation of BigDecimal and Float
  by casting to BigDecimal on both ends of the validation.

  Gannon McGibbon

... (truncated)

Commits

• b9ca94c Preparing for 5.2.3 release
• 657103b Preparing for 5.2.3.rc1 release
• 7a9d8c6 Merge branch 'v5-2-2-1' into 5-2-stable
• e69ff43 Prep release
• cc9dd86 Merge pull request #35080 from sos4nt/add_hash_assoc
• 4a9bd2b Merge pull request #34892 from kbrock/safer_safe_constantize
• e12df15 Remove deprecation warning about require `active_support/core_ext/range/inclu...
• bd24ef6 Merge pull request #32938 from utilum/range_case_equality
• 13bdad8 Merge pull request #32556 from utilum/splat
• 63dcc7f Fix ruby warnings
• Additional commits viewable in compare view

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