[CI] Check for un-built JS dist files

.github/workflows/test.yaml

@@ -23,6 +23,36 @@ jobs:
             - name: Run Biome
               run: yarn run ci
 
+    js-dist-current:
+        name: Check for un-built JS dist files
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v4
+
+            - name: Install Node
+              uses: actions/setup-node@v4
+              with:
+                  node-version: 14 # lowest supported version
+
+            - run: yarn install && yarn build
+
+            - name: Check if js dist files are current
+              id: changes
+              run: |
+                  echo "STATUS=$(git status --porcelain)" >> $GITHUB_OUTPUT
+
+            - name: No changes found
+              if: steps.changes.outputs.STATUS == ''
+              run: |
+                  echo "git status is clean"
+
+            - name: Changes were found
+              if: steps.changes.outputs.STATUS != ''
+              run: |
+                  echo "JS dist files need to be rebuilt"
+                  echo "${{ steps.changes.outputs.STATUS }}"
+                  exit 1
+
     tests:
         name: Tests (Node.js ${{ matrix.node-versions }})
         runs-on: ubuntu-latest