perf: automatically suspend the scheduler when all threads are waiting (#1591)

* perf: automatically suspend the scheduler when all threads are waiting

* ci: fix ci

* test: cleanup

tests/core/init_spec.lua

@@ -1,4 +1,3 @@
----@module 'luassert'
 local Util = require("lazy.core.util")
 
 describe("init", function()

tests/core/plugin_spec.lua

@@ -1,5 +1,3 @@
----@module 'luassert'
-
 local Config = require("lazy.core.config")
 local Handler = require("lazy.core.handler")
 local Plugin = require("lazy.core.plugin")

tests/handlers/keys_spec.lua

@@ -1,4 +1,3 @@
----@module 'luassert'
 local Keys = require("lazy.core.handler.keys")
 
 describe("keys", function()

tests/manage/process_spec.lua

@@ -1,4 +1,3 @@
----@module 'luassert'
 local Async = require("lazy.async")
 local Process = require("lazy.manage.process")
 

tests/manage/task_spec.lua

@@ -1,4 +1,3 @@
----@module 'luassert'
 --# selene:allow(incorrect_standard_library_use)
 local Task = require("lazy.manage.task")