[4.2] PHP8.2 Add the missing props to the password form field

[laoneo]

Summary of Changes

Define the missing properties in the PasswordField class to prevent deprecation notice on PHP 8.2.

Test by code review.

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Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

[joomdonation]

I have tested this item ✅ successfully on a1c61c7

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[alikon]

I have tested this item ✅ successfully on a1c61c7

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/39608.}

[joomdonation]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/39608.}

[HLeithner]

thanks