Add GCP functions for serverless updates of data

[FloTeu]

As a website admin i dont want to add new data manually i order to keep the data up to date for the users

TODO:

• [x] Add gcp function for elo creation
• [x] Add gcp function for crawler
• [x] Add cron job

AC:

• Data is updated automatically

[FloTeu]

closed with latest PR https://github.com/FloTeu/op-tcg-leaderboard/pull/19