fix: correctly surround $nodejs variable

Author: brynblack

scripts/choco-install.ps1

@@ -23,7 +23,7 @@ choco source add --name="cache" --source="${PSScriptRoot}\..\tmp\chocolatey" --p
 
 # Install nodejs v20.5.1 (will use cache if exists)
 $nodejs = "nodejs"
-choco install '$nodejs' --version='20.5.1' --require-checksums -y --no-progress
+choco install "$nodejs" --version='20.5.1' --require-checksums -y --no-progress
 # Internalise nodejs to cache if doesn't exist
 if ( -not (Test-Path -Path "${PSScriptRoot}\..\tmp\chocolatey\$nodejs\$nodejs.20.5.1.nupkg" -PathType Leaf) ) {
   Save-ChocoPackage -PackageName $nodejs