feat: integrate node-html-parser for HTML fetching and parsing

- Added node-html-parser as a dependency for parsing HTML content.
- Implemented fetch-html script to fetch and parse HTML from a specified URL.
- Updated script sandbox to allow the use of node-html-parser.
- Created a new workflow for fetching data from dev.to, including configuration for URL and selectors.
- Updated package.json to include node-html-parser in server package dependencies.

packages/server/workflows/default/registers.yaml

@@ -2,4 +2,5 @@ scripts:
   - time-to-ntfy-example.yaml
   - test.yaml
   - manual-trigger.yaml
-  - cron-example.yaml
+  - cron-example.yaml
+  - fetch-devto.yaml