Modify SQL queries in crypto tutorial part 2 to work with static crypto dataset

[combscCode]

Description

The dataset for the crypto tutorials seem to have stopped updating on Nov 22, 2023. This means that the SQL queries in the tutorial now return nothing. This PR updates all of the NOW() calls used throughout the tutorial to work with the dates that are within the dataset currently.

An alternative to merging this PR would be to keep the crypto dataset up to date, but not sure how y'all would prefer to fix the issue.

Links

Fixes #[insert issue link, if any]
Fixes #3667

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[billy-the-fish]

@jonatas , can you have a quick look at this please.

[billy-the-fish]

@combscCode hope you don't mind, but I updated the description about the dataset for clarity.

[combscCode]

@combscCode hope you don't mind, but I updated the description about the dataset for clarity.

no worries! I found a couple other instances of 'updated daily' being used, pushed a commit that removes them as well.