fix(go): indent const declaration

https://github.com/nvim-treesitter/nvim-treesitter/issues/3104

queries/go/indents.scm

@@ -18,6 +18,8 @@
   "}"
 ] @branch
 
+(const_declaration ")" @branch)
+
 [
  "}"
  ")"

tests/indent/go/const_declaration.go

@@ -0,0 +1,7 @@
+package main
+
+const (
+	ExampleOne = iota
+	ExampleTwo
+	ExampleThree
+)

tests/indent/go_spec.lua

@@ -15,11 +15,10 @@ describe("indent Go:", function()
     })
   end)
 
-  describe("new line:", function()
+  describe("new lines:", function()
     run:new_line("issue-2369.go", { on_line = 13, text = "// some comment", indent = 1 })
-  end)
-
-  describe("new line after )/}:", function()
     run:new_line("issue-2369-newline.go", { on_line = 8, text = "// comment", indent = 0 })
+    run:new_line("const_declaration.go", { on_line = 3, text = "Constant", indent = 1 })
+    run:new_line("const_declaration.go", { on_line = 7, text = "func main() {", indent = 0 })
   end)
 end)