Use Test-CommandAvailable for protoc and node

Author: andyleejordan

build.helpers.psm1

@@ -393,7 +393,7 @@ function Install-Rust {
     param()
 
     process {
-        if ((Test-CommandAvailable -Name 'cargo')) {
+        if (Test-CommandAvailable -Name 'cargo') {
             Write-Verbose "Rust already installed"
             return
         }
@@ -597,7 +597,7 @@ function Install-NodeJS {
     param()
 
     process {
-        if ((Get-Command 'node' -ErrorAction Ignore)) {
+        if (Test-CommandAvailable -Name 'node') {
             Write-Verbose "Node.js already installed."
             return
         }
@@ -636,7 +636,7 @@ function Install-Protobuf {
     param()
 
     process {
-        if ((Get-Command 'protoc' -ErrorAction Ignore)) {
+        if (Test-CommandAvailable -Name 'protoc') {
             Write-Verbose "Protobuf already installed."
             return
         }