Proposed changes

Update the robotframework-c8y library to fix an issue where the Cumulocity bulk device registration api would fail due to the randomly generated password not meeting the Cumulocity password policy.

The bug was discoverred from a failed workflow run (in the merge queue)

• https://github.com/thin-edge/thin-edge.io/actions/runs/12115548790/job/33774366914

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Improvement (general improvements like code refactoring that doesn't explicitly fix a bug or add any new functionality)
• Documentation Update (if none of the other choices apply)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Paste Link to the issue

Checklist

• I have read the CONTRIBUTING doc
• I have signed the CLA (in all commits with git commit -s)
• I ran cargo fmt as mentioned in CODING_GUIDELINES
• I used cargo clippy as mentioned in CODING_GUIDELINES
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Further comments