fix: Unable to set custom class names under datePickerCustomClassNames in the Booker component

[parteekmalik]

What does this PR do?

• Fixes #21516 (GitHub issue number)
• Fixes CAL-5826 (Linear issue number - should be visible at the bottom of the GitHub issue description)

Mandatory Tasks (DO NOT REMOVE)

• [x] I have self-reviewed the code (A decent size PR without self-review might be rejected).
• [x] I have updated the developer docs in /docs if this PR makes changes that would require a documentation change. If N/A, write N/A here and check the checkbox.
• [x] I confirm automated tests are in place that prove my fix is effective or that my feature works.

---

Summary by cubic

Fixed an issue where custom class names set under datePickerCustomClassNames were not applied in the Booker component.

• Bug Fixes
  • Booker now correctly passes datePickerCustomClassNames to the DatePicker component.

[vercel[bot]]

@parteekmalik is attempting to deploy a commit to the cal Team on Vercel.

A member of the Team first needs to authorize it.

[graphite-app[bot]]

Graphite Automations

"Add consumer team as reviewer" took an action on this PR • (06/01/25)

1 reviewer was added to this PR based on Keith Williams's automation.

"Add community label" took an action on this PR • (06/01/25)

1 label was added to this PR based on Keith Williams's automation.

"Add platform team as reviewer" took an action on this PR • (06/01/25)

1 reviewer was added to this PR based on Keith Williams's automation.

"Add ready-for-e2e label" took an action on this PR • (06/16/25)

1 label was added to this PR based on Keith Williams's automation.

[Devanshusharma2005]

hey @parteekmalik can you please share the loom that the classes are being applied or not ? (you can check it on inspect tab)

[github-actions[bot]]

E2E results are ready!

• Workflow #65406.1 latest results