Add automated test workflow and update checkout action version

.github/workflows/create-release.yml

@@ -12,7 +12,7 @@ jobs:
   execute-parallel-pipeline:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-dotnet@v5
       - uses: chickensoft-games/setup-godot@v2
         with:

.github/workflows/run-tests.yml

@@ -0,0 +1,41 @@
+name: Build and Run Tests for the Whole Solution
+on:
+  push:
+    branches-ignore:
+      - main
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v5
+        with:
+          dotnet-version: 10.0.x
+
+      - name: Setup Godot
+        uses: chickensoft-games/setup-godot@v2
+        with:
+          version: 4.5.1
+          use-dotnet: true
+          include-templates: true
+
+      - name: Restore dependencies
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build --no-restore
+
+      - name: Test
+        run: dotnet test --no-restore --no-build --verbosity normal

SharpIDE.slnx

@@ -2,6 +2,7 @@
   <Folder Name="/.github/" />
   <Folder Name="/.github/workflows/">
     <File Path=".github/workflows/create-release.yml" />
+    <File Path=".github/workflows/run-tests.yml" />
   </Folder>
   <Folder Name="/iac/">
     <File Path="iac/should-release.cs" />