More github action tests (#7301)

.github/workflows/test-packaging.yml

@@ -0,0 +1,56 @@
+name: Test Packaging
+
+on:
+  push:
+    branches: [ master ]
+    paths:
+      - '**.cs'
+      - '**.csproj'
+      - '**.sln'
+      - '**.git**'
+      - '**.yml'
+      # no docs on which one of these is supposed to work, so
+      # why not just do both
+      - 'RobustToolbox'
+      - 'RobustToolbox/**'
+  pull_request:
+    branches: [ master ]
+    paths:
+      - '**.cs'
+      - '**.csproj'
+      - '**.sln'
+      - '**.git**'
+      - '**.yml'
+      - 'RobustToolbox'
+      - 'RobustToolbox/**'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: 'recursive'
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: 6.0.100
+
+      - name: Get Engine Tag
+        run: |
+          cd RobustToolbox
+          git fetch --depth=1
+
+      - name: Package client
+        run: |
+          Tools/package_server_build.py -p win-x64 linux-x64 osx-x64 linux-arm64
+          Tools/package_client_build.py
+
+      - name: Update Build Info
+        run: Tools/gen_build_info.py
+
+      - name: Shuffle files around
+        run: |
+          mkdir "release/${{ github.sha }}"
+          mv release/*.zip "release/${{ github.sha }}"