fix(Command): catch InvalidArgumentException if login-name option doesn't exist

[edward-ly]

Summary

In NC 33 and 34, the occ user:auth-tokens:add command fails due to the backports of #63555 (#63696, #63697). That fix introduces the login-name option which was first added in #59680 (NC 35) but not backported. This fix catches the exception that is thrown in case login-name is not defined.

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)
• Labels added where applicable (ex: bug/enhancement, 3. to review, feature component)
• Milestone added for target branch/version (ex: 32.x for stable32)

AI (if applicable)

• The content of this PR was partly or fully generated using AI

[edward-ly]

/backport to stable35

[edward-ly]

/backport to stable34

[edward-ly]

/backport to stable33

[marcelklehr]

I think this is already fixed: #63988

[edward-ly]

I think this is already fixed: #63988

Ah, I had no idea, although it didn't contain links to the previous PRs so it wasn't easily findable. Anyway, hopefully the stable33/34 CI checks can be resolved soon if they haven't already.