fix(ruby): indent of brackets & parens

tests/indent/ruby/indent-brackets.rb

@@ -0,0 +1,5 @@
+def indent_brackets
+  {
+    {}
+  }
+end

tests/indent/ruby/indent-parens.rb

@@ -0,0 +1,5 @@
+def indent_parens
+  (
+    ()
+  )
+end

tests/indent/ruby_spec.lua

@@ -6,6 +6,12 @@ local run = Runner:new(it, "tests/indent/ruby", {
 })
 
 describe("indent Ruby:", function()
+  describe("whole file:", function()
+    run:whole_file(".", {
+      expected_failures = {},
+    })
+  end)
+
   describe("new line:", function()
     run:new_line("indent-unless.rb", { on_line = 1, text = "stmt", indent = 2 })
     run:new_line("indent-assignment.rb", { on_line = 1, text = "1 +", indent = 2 })