Fix php-ts-mode font-lock for latest PHP grammar (bug#73516)

Fix php-ts-mode font-lock for latest PHP grammar (bug#73516)

Version 0.23 of the PHP grammar introduced some changes that
affect the font lock.

* lisp/progmodes/php-ts-mode.el
(php-ts-mode--language-source-alist): Update php, html, js and css
grammars version.
(php-ts-mode--parent-html-heuristic): Fix docstring
(php-ts-mode--test-namespace-name-as-prefix-p): New function.
(php-ts-mode--test-namespace-aliasing-clause-p): New function.
(php-ts-mode--test-namespace-use-group-clause-p): New function.
(php-ts-mode--font-lock-settings): Use the new functions.