Update project to Xcode 13, iOS 15 and watchOS 8

[diogot]

• Update project dependencies
• Update project to run in Xcode 13
• Update deployment target to iOS 14 and watchOS 7
• Fix issues caused by updates
• Update SwiftGen config

[diogot-bot]

	5 Warnings
⚠️	Big PR
⚠️	Modified Gemfile
⚠️	Modified Gemfile.lock
⚠️	Modified Podfile
⚠️	Modified Podfile.lock

Rubocop violations

File	Line	Reason
rakelib/setup.rake	118	Use _e instead of _.
rakelib/xcode.rake	45	Avoid rescuing without specifying an error class.
rakelib/xcode.rake	54	Avoid rescuing without specifying an error class.
rakelib/xcode.rake	93	Class has too many lines. [201/100]
rakelib/xcode.rake	208	Prefer single-quoted strings when you don't need string interpolation or special symbols.
rakelib/xcode.rake	221	Do not use semicolons to terminate expressions.
rakelib/xcode.rake	245	Assignment Branch Condition size for tests_results is too high. [<14, 20, 4> 24.74/17]
rakelib/xcode.rake	245	Method has too many lines. [21/20]
rakelib/xcode.rake	288	Assignment Branch Condition size for find_test_summaries is too high. [<10, 21, 6> 24.02/17]
rakelib/xcode.rake	444	Assignment Branch Condition size for parse_content is too high. [<12, 52, 7> 53.82/17]
rakelib/xcode.rake	444	Cyclomatic complexity for parse_content is too high. [8/7]
rakelib/xcode.rake	444	Method has too many lines. [36/20]

Generated by 🚫 Danger

[diogot-bot]

	1 Warning
⚠️	'CLKComplicationSupportedFamilies' has been deprecated starting in watchOS 7.0, use the ClockKit complications API instead. (in target 'Watch Extension' from project 'MyWeight')

Generated by 🚫 Danger

[unnamedd]

Amazing to see you working in this project again @diogot!
🤘

[diogot]

The last stop of Danger is broken, I'll merge this (the test are passing) and fix Danger in the next PR.