Automatic onboard fails when workflow_name is uppercase

[javirln]

The reusable workflow for onboarding workflows automatically fails whenever the workflow name uppercase or contains spaces for example:

Creating 'Release' chainloop workflow
INF API token provided to the command line
ERR validation error: "Release": a lowercase RFC 1123 label must consist of lower case alphanumeric characters or '-', and must start and end with an alphanumeric character (e.g. 'my-name',  or '123-abc', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?')

[javirln]

Reference to the PR on labs: #26