[macOS] Add SwiftFormat for macOS 12 (#5495)

* Add SwiftFormat for macOS 12

* Update docs and pester test

images/macos/software-report/SoftwareReport.Generator.ps1

@@ -176,15 +176,10 @@ $toolsList += @(
     (Get-GHCupVersion),
     (Get-GHCVersion),
     (Get-CabalVersion),
-    (Get-StackVersion)
+    (Get-StackVersion),
+    (Get-SwiftFormatVersion)
 )
 
-if($os.IsLessThanMonterey) {
-    $toolsList += @(
-        (Get-SwiftFormatVersion)
-    )
-}
-
 $markdown += New-MDList -Style Unordered -Lines ($toolsList | Sort-Object)
 
 # Linters

images/macos/tests/BasicTools.Tests.ps1

@@ -30,7 +30,7 @@ Describe "Subversion" {
     }
 }
 
-Describe "SwiftFormat" -Skip:($os.IsMonterey) {
+Describe "SwiftFormat" {
     It "SwiftFormat" {
         "swiftformat --version" | Should -ReturnZeroExitCode
     }

images/macos/toolsets/toolset-12.json

@@ -127,6 +127,7 @@
             "perl",
             "sbt",
             "subversion",
+            "swiftformat",
             "swig",
             "zstd",
             "gmp",