Support pandas>3 in data-designer

[ayushdg]

Priority Level

Medium (Nice to have)

Is your feature request related to a problem? Please describe.

Current constraints of data designer packages limit the pandas upper bound at <3.0.0. This makes it harder to install alongside many applications like cuDF which require pandas>=3, <3.0.4.
It would be great if data-designer could support pandas>3

Describe the solution you'd like

move the upper bound to something that supports newer pandas 3.x versions.

Describe alternatives you've considered

Overriding lockfile dependencies.

Agent Investigation

No response

Additional context

No response

Checklist

• I've reviewed existing issues and the documentation
• This is a design proposal, not a "please build this" request