Updating the latest contracts version

[aaitor]

Description

Using contracts v1.1.4

Is this PR related with an open issue?

https://github.com/nevermined-io/internal/issues/153

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [X] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [X] Follows the code style of this project.
• [X] Tests Cover Changes
• [X] Documentation

[aaitor]

blocked by https://github.com/nevermined-io/metadata-api/issues/22