fix(build): phpDocumentor usage

Signed-off-by: John Molakvoæ <skjnldsv@protonmail.com>

build/phpDocumentor.sh

@@ -4,4 +4,4 @@ wget https://phpdoc.org/phpDocumentor.phar
 
 mkdir -p api/
 
-php phpDocumentor.phar -t "./api" -d "./lib/public" --title="Nextcloud PHP API ($BRANCH)"
+php phpDocumentor.phar --target=./api --directory=./lib/public --title="Nextcloud PHP API ($BRANCH)"