Fix syntax error

Author: Arlodotexe

.github/workflows/build.yml

@@ -135,7 +135,7 @@ jobs:
           $changedComponents = $(./tooling/Get-Changed-Components.ps1)
           $buildableChangedComponents = $(./tooling/MultiTarget/Filter-Supported-Components.ps1 -Components $changedComponents -MultiTargets ${{ matrix.multitarget }} -WinUIMajorVersion ${{ matrix.winui }})
           echo "CHANGED_COMPONENTS_LIST=$(($buildableChangedComponents | ForEach-Object { "'$_'" }) -join ',')" >> $env:GITHUB_ENV
-          echo "HAS_BUILDABLE_COMPONENTS=$(buildableChangedComponents.Count -gt 0)" >> $env:GITHUB_ENV
+          echo "HAS_BUILDABLE_COMPONENTS=$($buildableChangedComponents.Count -gt 0)" >> $env:GITHUB_ENV
 
       # Generate full solution with all projects (sample gallery heads, components, tests)
       - name: Generate solution with ${{ matrix.multitarget }} gallery, components and tests
@@ -271,7 +271,7 @@ jobs:
           $changedComponents = $(./tooling/Get-Changed-Components.ps1)
           $buildableChangedComponents = $(./tooling/MultiTarget/Filter-Supported-Components.ps1 -Components $changedComponents -MultiTargets ${{ matrix.multitarget }} -WinUIMajorVersion ${{ matrix.winui }})
           echo "CHANGED_COMPONENTS_LIST=$(($buildableChangedComponents | ForEach-Object { "'$_'" }) -join ',')" >> $env:GITHUB_ENV
-          echo "HAS_BUILDABLE_COMPONENTS=$(buildableChangedComponents.Count -gt 0)" >> $env:GITHUB_ENV
+          echo "HAS_BUILDABLE_COMPONENTS=$($buildableChangedComponents.Count -gt 0)" >> $env:GITHUB_ENV
 
       # Build and pack component nupkg
       - name: Build and pack component packages