Fix for how install apps is set

Author: aholstrup1

Actions/RunPipeline/RunPipeline.ps1

@@ -199,7 +199,7 @@ try {
 
     if ($installAppsJson -and (Test-Path $installAppsJson)) {
         try {
-            $install.Apps += @(Get-Content -Path $installAppsJson -Raw | ConvertFrom-Json)
+            $install.Apps = Get-Content -Path $installAppsJson | ConvertFrom-Json
         }
         catch {
             throw "Failed to parse JSON file at path '$installAppsJson'. Error: $($_.Exception.Message)"
@@ -208,7 +208,7 @@ try {
 
     if ($installTestAppsJson -and (Test-Path $installTestAppsJson)) {
         try {
-            $install.TestApps += @(Get-Content -Path $installTestAppsJson -Raw | ConvertFrom-Json)
+            $install.TestApps = Get-Content -Path $installTestAppsJson | ConvertFrom-Json
         }
         catch {
             throw "Failed to parse JSON file at path '$installTestAppsJson'. Error: $($_.Exception.Message)"