fix(WDoc): Remove colon chars (':') from state names when generating workflow's families (refs #4548)

State names with colon (':') triggered the generation of a workflow
family with erroneous attribute's options.
Merge pull request #1107 from eguaj/3.2-A4548

fix(WDoc): Remove colon chars (':') from state names when generating workflow's families (closes #4548)