Add schema validation for collection files #369

This commit improves collection file editing and error detection
directly in the IDE. It adds YAML schema, IDE configuration and
automatic tests to validate it.

- Introduce a YAML schema for collection file.
- Use `yaml-language-server` for enhanced YAML support in VSCode.
- Add telemetry disabling in `configure_vscode.py` to respect user
  privacy.
- Add automated checks to validate YAML file structure against the
  schema.
- Remove unused properties and do not allow them in compiler.

.github/workflows/checks.quality.yaml

@@ -74,3 +74,28 @@ jobs:
       -
         name: Analyzing the code with pylint
         run: npm run lint:pylint
+
+  validate-collection-files:
+    runs-on: ${{ matrix.os }}-latest
+    strategy:
+      matrix:
+        os: [ macos, ubuntu, windows ]
+      fail-fast: false # Still interested to see results from other combinations
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Setup node
+        uses: ./.github/actions/setup-node
+      -
+        name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+      -
+        name: Install dependencies
+        run: python3 -m pip install -r ./scripts/validate-collections-yaml/requirements.txt
+      -
+        name: Validate
+        run: python3 ./scripts/validate-collections-yaml