[macOS] set default nodeJS version to 16 (#4559)

images/macos/tests/Node.Tests.ps1

@@ -4,11 +4,6 @@ Import-Module "$PSScriptRoot/../helpers/Tests.Helpers.psm1" -DisableNameChecking
 $os = Get-OSVersion
 
 Describe "Node.js" {
-    BeforeAll {
-        $os = Get-OSVersion
-        $expectedNodeVersion = if ($os.IsHigherThanMojave) { "v14.*" } else { "v8.*" }
-    }
-
     It "Node.js is installed" {
         "node --version" | Should -ReturnZeroExitCode
     }
@@ -17,10 +12,6 @@ Describe "Node.js" {
         node --version | Should -BeLike "v$(Get-ToolsetValue 'node.default')*"
     }
 
-    It "Node.js $expectedNodeVersion is default" {
-        (Get-CommandResult "node --version").Output | Should -BeLike $expectedNodeVersion
-    }
-
     It "NPM is installed" {
         "npm --version" | Should -ReturnZeroExitCode
     }

images/macos/toolsets/toolset-10.15.json

@@ -331,7 +331,7 @@
         "default": "1.15"
     },
     "node": {
-        "default": "14",
+        "default": "16",
         "nvm_versions": [
             "12",
             "14",

images/macos/toolsets/toolset-11.json

@@ -283,7 +283,7 @@
         "default": "1.15"
     },
     "node": {
-        "default": "14",
+        "default": "16",
         "nvm_versions": [
             "12",
             "14",

images/macos/toolsets/toolset-12.json

@@ -184,7 +184,7 @@
         "default": "1.17"
     },
     "node": {
-        "default": "14",
+        "default": "16",
         "nvm_versions": [
             "12",
             "14",