php: Add nowdoc language injection (#23532)

Ollie Beckwith created

We already have heredoc injection support, so this just extends it to also cover
[nowdoc](https://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.nowdoc).

Change summary

extensions/php/languages/php/injections.scm | 2 ++
1 file changed, 2 insertions(+)

Detailed changes

extensions/php/languages/php/injections.scm 🔗

@@ -7,3 +7,5 @@
   (#set! injection.language "phpdoc"))
 
 ((heredoc_body) (heredoc_end) @injection.language) @injection.content
+
+((nowdoc_body) (heredoc_end) @injection.language) @injection.content