chore(docs): use tsc directly in deploy workflow

To avoid closure compiler (which isn't currently available in this workflow / CI, and feels like overkill?)

Author: grega

.github/workflows/deploy-docusaurus.yml

@@ -51,10 +51,10 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
-      - name: Build Blockly and generate reference docs
+      - name: Generate TypeScript declarations and reference docs
         working-directory: ./packages/blockly
         run: |
-          npm run package
+          npx tsc -outDir build/src -declarationDir dist
           npm run docs
 
       - name: Build the Docusaurus site