Fix multiline array/dictionary match statements

Currently array and dictionary expressions cannot be spread over
multiple lines in match statements.

Adding mutliline push/pop while parsing the pattern for bracket and
brace enables the ability for these to be multiline. This enables more
complex patterns to be matched without exceeding line limits.

Fixes #90372

modules/gdscript/tests/scripts/parser/features/match_dictionary.out

@@ -13,3 +13,6 @@ wildcard
 1
 2
 wildcard
+multiline {"key1": "value1"}
+multiline {"key2": "value2",}
+multiline {"key3": {"key1", ..,},}