p-checkbox has invalid markup when required="false"

[nathanielbuck]

Describe the bug

<p-checkbox [required]="false" /> results in the markup <input type="checkbox" required="false" />, which actually indicates that <input> is required.

The expected HTML in this scenario is <input type="checkbox" />, as the lack of the required property is the proper indication that the input is not required.

Pull Request Link

No response

Reason for not contributing a PR

• Lack of time
• Unsure how to implement the fix/feature
• Difficulty understanding the codebase
• Other

Other Reason

No response

Reproducer

https://stackblitz.com/edit/stackblitz-starters-pf6qupkm

Environment

macOS 15.3

Angular version

19.0.0

PrimeNG version

v19

Node version

No response

Browser(s)

No response

Steps to reproduce the behavior

Create a <p-checkbox> with required set to false.

Expected behavior

The required property is not present on checkbox inputs that are not required.