Add extractor build workflow.

Author: MathiasVP

.github/workflows/powershell-build-extractor-linux.yml

@@ -0,0 +1,27 @@
+name: Build PowerShell Extractor
+
+on:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '8.0.x'
+
+      - name: Build PowerShell Extractor
+        working-directory: extractor/powershell
+        run: dotnet publish -r linux-x64 -c Release --self-contained
+
+      - name: Upload Build Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: powershell-extractor
+          path: powershell/extractor/bin/Release/