Increase minimum supported macOS version from 13 Ventura to 15 Sequoia

[rgoldberg]

Increase mas's minimum supported macOS version from 13 Ventura to 15 Sequoia.

This should be done only on the release of a major version.

The known benefits of increasing the minimum macOS version for running mas are (by minimum version):

• All:
  • Remove mas & header code that is no longer needed
    • #available
    • #unavailable
    • @available
    • NS_AVAILABLE_MAC
    • NS_DEPRECATED_MAC
  • Replace, e.g.:
    • 12 ➡ 14
    • Monterey ➡ Sonoma
    • 13 ➡ 15
    • Ventura ➡ Sequoia
• 14 Sonoma
  • Observation framework
  • withDiscardingTaskGroup(…)
  • JSONEncoder.encode(_:configuration:)
  • .sorted(using: SortDescriptor(\.name, comparator: .localizedStandard)) instead of .sorted { $0.name.localizedStandardCompare($1.name) == .orderedAscending }
• 15 Sequoia
  • /usr/bin/jq: remove jq brew dependency for 14 Sonoma & earlier
  • /usr/bin/trash
  • ManagedAtomic ➡ Atomic
  • SKPaymentQueue
    • Remove due to deprecation
  • String
    • init(validating:as:)
  • AsyncSequence<Element, Failure> (instead of AsyncSequence<Element>)
    • swift-async-algorithms
  • RangeSet
  • Int128
  • UInt128
• 27 ?
  • Drop x86_64 support

Mac models that become unsupported by specific macOS versions:

• 14 Sonoma
  • iMac 2017
  • MacBook 2017
  • MacBook Pro 2017
• 15 Sequoia
  • MacBook Air 2018
  • MacBook Air 2019
• 26 Tahoe
  • iMac 2019 27" 5K Retina
  • iMac 2019 21.5" 4K Retina
  • iMac Pro 2017
  • Mac mini 2018
  • MacBook Air 2020 13" Retina
  • MacBook Pro 2018 13" 4 Thunderbolt ports
  • MacBook Pro 2018 15"
  • MacBook Pro 2019 13" 2 Thunderbolt ports
  • MacBook Pro 2019 13" 4 Thunderbolt ports
  • MacBook Pro 2019 15"
  • MacBook Pro 2020 13" 2 Thunderbolt ports