fix unit test set-up and CI workflow (#3154)

* Fix unit test set-up

* run tests on CI

* update failing tests

* Update node

Update the coverage job node version

.github/workflows/test.yml

@@ -23,7 +23,7 @@ jobs:
             - name: Setup Node.js environment
               uses: actions/setup-node@v4
               with:
-                  node-version: 20.15.1
+                  node-version: 22
 
             # Setup Python for coverage script
             - name: Setup Python
@@ -73,9 +73,8 @@ jobs:
             - name: Build Extension
               run: npm run compile
 
-            # Disabling due to compatability with test framework and ESM modules
-            # - name: Unit Tests
-            #   run: npm run test:unit
+            - name: Unit Tests
+              run: npm run test:unit
 
             # Run extension tests with coverage
             - name: Extension Tests with Coverage
@@ -132,7 +131,7 @@ jobs:
             - name: Setup Node.js environment
               uses: actions/setup-node@v4
               with:
-                  node-version: 20.15.1
+                  node-version: 22
 
             # Cache root dependencies - only reuse if package-lock.json exactly matches
             - name: Cache root dependencies