fix(Core): phpdoc parsing for snippets tests (#9012)

Author: bshaffer

Core/src/Testing/Reflection/DescriptionFactory.php

@@ -126,8 +126,9 @@ private function lex(string $contents): array
 
         return Utils::pregSplit(
             '/\{
-                # "{@}" is not a valid inline tag. This ensures that we do not treat it as one, but treat it literally.
-                (?!@\})
+                # "{@}" and "{@*}" are not a valid inline tags. This ensures that we do not treat them as one, but treat
+                # them literally.
+                (?!(?:@\}|@\*\}) )
                 # We want to capture the whole tag line, but without the inline tag delimiters.
                 (\@
                     # Match everything up to the next delimiter.