Describe the bug

Commit 1536d12 fixed issue #7010 however now it breaks the formatting when DatePicker is given an ISO string.

Pull Request Link

#7398

Reproducer

https://stackblitz.com/edit/primevue-4-vite-issue-template-ftdl6m5c?file=src%2FApp.vue

Environment

• Windows 11

Vue version

3.4.31

PrimeVue version

4.3.1

Browser(s)

Edge 135.0.3168.2

Steps to reproduce the behavior

1. Input an ISO string to DatePicker
2. You can see the date is not being formatted to the specified dateFormat

Expected behavior

1. Input an ISO string to DatePicker
2. Format the date according to dateFormat as in PrimeVue 4.2.5 (before commit 1536d12), similarly as it would occur if the input was a Date object.

Considering PrimeVue documentation specifies Date | null as input to DatePicker, the fix to issue #7010, although allowing more flexibility to DatePicker, ends up breaking an, IMHO, much more expected behavior of properly parsing an ISO string.