Fix various bugs

[stefannica]

Describe changes

Fix various minor bugs:

1. Fix random pipeline run name generator to not use spaces (which is a problem with Vertex AI for example
2. TBC

Pre-requisites

Please ensure you have done the following:

• I have read the CONTRIBUTING.md document.
• If my change requires a change to docs, I have updated the documentation accordingly.
• If I have added an integration, I have updated the integrations table and the corresponding website section.
• I have added tests to cover my changes.
• I have based my new branch on develop and the open PR is targeting develop. If your branch wasn't based on develop read Contribution guide on rebasing branch to develop.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Other (add details above)

[bcdurak]

I am amazed by the sheer volume of fixes here. It was a challenging review, but I enjoyed it very much. Great changes!