update the falco version to 0.40

[Issif]

The Falco project has evolved a lot over the years but the version proposed in the marketplace is outdated for a while. This is a simple PR to upgrade up to the latest version.

If your pull request concerns an existing Marketplace application, please make sure you have:

• Notified the Maintainer of the application in this pull request so that they are aware of your proposal.
• Outlined the changes you are proposing, and the reasons these are required (e.g. stability, compatibility with new versions of Kubernetes implementations, etc).
• Tested that the application works with the proposed updates applied (including a screenshot).
• Updated the version number of the app if that has changed.