Fix php closing braces indent

[JFFI]

Requirements

• Filling out the template is required. Any pull request that does not include enough information to be reviewed in a timely manner may be closed at the maintainers' discretion.
• All new code requires tests to ensure against regressions

Description of the Change

There is more than one syntax for inline php as shown in the PHP page

The auto-indent currently works for this syntax of inline php:

<?php if ($cond) : ?>
    some-html-here
<?php endif; ?>

but when trying this other syntax the indentation breaks:

<?php if ($cond) { ?>
    some-html-here
    <?php } ?>

So I just added <?php } to the decreaseIndentPattern to make it properly align.

Alternate Designs

I chose this approach because the indentation rules for the alternate syntax were already managed in this variable and it was simply a matter of placing it in the regex.

Benefits

Another syntax of inline php will indent correctly.

Possible Drawbacks

All lines starting with <?php } will decrease indent.

Applicable Issues

I couldn't find any Issue regarding this.

[50Wliu]

Thanks!