include deletion of old artifacts in build script

scripts/build.ps1

@@ -4,6 +4,16 @@ $PY_PATH = Join-Path -Path $ENV_PATH -ChildPath 'python'
 $SRC_PATH = (Get-Location).Path
 
 Write-Output "Build Pipeline for d-opt EKF-Diagnostics sensor anomaly detection"
+
+Write-Output "Delete existing artifacts..."
+$pattern = "dopt_ekf_sensor-anomalies_v*"
+Get-ChildItem -Path $DEPLOYMENT_PATH -Filter $pattern | Remove-Item -Recurse -Force
+if ($? -eq $false){
+    Write-Output "[PWSH] Exiting script because there were errors in the deletion procedure"
+    Exit
+}
+Write-Output "Deleted outstanding artifacts successfully"
+
 Write-Output "Building package..."
 .\scripts\publish.ps1
 if ($? -eq $false){