Add redundant typed throws rule

[miguel-jimenez-0529]

This PR adds a new redundantTypedThrows rule, which removes a typed throws (introduced in Swift 6.0) if it is redundant.

For example:

- func foo() throws(Never) -> Int {
+ func foo() -> Int {
      return 0
  }

- func foo() throws(any Error) -> Int {
+ func foo() throws -> Int {
      throw MyError.foo
  }

We don't remove (Error) because we can't guarantee it will reference the Swift.Error protocol
(it's relatively common to define a custom error like enum Error: Swift.Error { ... }).

[miguel-jimenez-0529]

cc: @calda

[calda]

Looks great! Nice work @miguel-jimenez-0529!

[codecov]

Codecov Report

Attention: Patch coverage is 97.56098% with 1 line in your changes missing coverage. Please review.

Project coverage is 95.17%. Comparing base (56723db) to head (8b28de6).

Files	Patch %	Lines
Sources/Rules.swift	96.42%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1718      +/-   ##
===========================================
+ Coverage    95.16%   95.17%   +0.01%     
===========================================
  Files           20       20              
  Lines        23185    23226      +41     
===========================================
+ Hits         22063    22105      +42     
+ Misses        1122     1121       -1     

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