Extend ImplicitReturnRule to apply to switch statements

[Iikeli]

Nonviolating examples:

switch someBool {
case true: true
case false: false
}

switch someBool {
case true:
    true
case false:
    false
}

Violating examples:

switch someBool {
case true: ↓return true
case false: ↓return false
}

someBool {
case true:
    ↓return true
case false:
    ↓return false
}

[SwiftLintBot]

Danger has errored

[!] Invalid Dangerfile file: Invalid argument @ io_fread - /var/folders/k1/02xbzn0s7mlcnqfq1_sr5mhc0000gn/T/violations20240716-31125-1kxvr8n. Updating the Danger gem might fix the issue. Your Danger version: 9.2.0, latest Danger version: 9.4.3

 #  from Dangerfile:74
 #  -------------------------------------------
 #  
 >  lines = file.read.chomp
 #  file.close
 #  -------------------------------------------

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