Fix php indent for short array declaration

queries/php/indents.scm

@@ -6,6 +6,7 @@
   (return_statement)
   (arguments)
   (formal_parameters)
+  "["
 ] @indent
 
 [

tests/indent/php/issue-3591.php

@@ -0,0 +1,5 @@
+<?php
+
+function test() {
+    $array = [
+}

tests/indent/php_spec.lua

@@ -22,5 +22,6 @@ describe("indent PHP:", function()
     )
     run:new_line("issue-2497.php", { on_line = 5, text = "$a =", indent = 4 })
     run:new_line("unfinished-call.php", { on_line = 6, text = "$a =", indent = 0 })
+    run:new_line("issue-3591.php", { on_line = 4, text = "$a =", indent = 8 })
   end)
 end)