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):

• 14 Sonoma
  • Observation framework
  • Predicate
  • Sequence.filter(_: Predicate)
  • withDiscardingTaskGroup(…)
  • JSONEncoder.encode(_:configuration:)
  • SortDescriptor
    • .sorted(using: SortDescriptor(\.name, comparator: .localizedStandard)) instead of .sorted { $0.name.localizedStandardCompare($1.name) == .orderedAscending }
• 15 Sequoia
  • Update Swift Subprocess to 1.0.0+
  • Update Swift System to 1.8.0+
  • https://developer.apple.com/documentation/foundation/data/bytes
  • https://github.com/apple/swift-configuration
  • /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
• 26 Tahoe
• 27 Golden Gate
  • Drop x86_64 support

Upgrade tasks:

• 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

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 21.5" 4K Retina 2019
  • iMac 27" 5K Retina 2019
  • iMac Pro 2017
  • Mac mini 2018
  • MacBook Air 13" Retina 2020
  • MacBook Pro 13" 2018 4 Thunderbolt ports
  • MacBook Pro 13" 2019 2 Thunderbolt ports
  • MacBook Pro 13" 2019 4 Thunderbolt ports
  • MacBook Pro 13" 2020 2 Thunderbolt ports
  • MacBook Pro 15" 2018
  • MacBook Pro 15" 2019
• 27 Golden Gate
  • Mac Pro 2019
  • MacBook Pro 13" 2020 4 Thunderbolt 3 ports
  • MacBook Pro 16" 2019
  • iMac Retina 5K 27" 2020