Schedule Regular Scraping of Bitcoin Improvement Proposals (BIPs, BLIPs, BOLTs)

Currently, we have scraping code for Bitcoin Improvement Proposals ([BIPs](https://github.com/bitcoinsearch/scraper/blob/master/scrapybot/scrapybot/spiders/bips.py), [BLIPs](https://github.com/bitcoinsearch/scraper/blob/master/scrapybot/scrapybot/spiders/blips.py), and [BOLTs](https://github.com/bitcoinsearch/scraper/blob/master/scrapybot/scrapybot/spiders/bolts.py)) from GitHub repositories, but it isn't set to run on a schedule. As a result, these sources are not being updated regularly and may contain outdated information.

We need to implement a cron job to ensure that these improvement proposals are scraped on a more frequent basis, so that our data stays current.

Tasks:
1. Create a cron job for regular scraping of BIPs, BLIPs, and BOLTs.
2. Define an appropriate frequency for scraping (e.g., daily or weekly).
3. Ensure the scraped data is stored properly in the Elasticsearch index.