test: make some trivial change to trigger the CI

Part of #531

NO_DOC=trivial
NO_TEST=trivial

Author: LevKats

test/replicaset-luatest/vconnect_test.lua

@@ -11,6 +11,7 @@ local timeout_opts = {timeout = vtest.wait_timeout}
 
 local test_group = t.group('vconnect')
 
+-- Trigger flaky.
 local cfg_template = {
     sharding = {
         replicaset = {

test/router-luatest/router_2_2_test.lua

@@ -29,6 +29,7 @@ local cfg_template = {
 }
 local global_cfg = vtest.config_new(cfg_template)
 
+-- Trigger flaky.
 local function callrw_get_uuid(bid, timeout)
     timeout = timeout ~= nil and timeout or iwait_timeout
     return ivshard.router.callrw(bid, 'get_uuid', {}, {timeout = timeout})

test/storage-luatest/auto_master_2_2_2_test.lua

@@ -5,6 +5,7 @@ local vutil = require('vshard.util')
 local group_config = {{is_sync = false}, {is_sync = true}}
 local test_group = t.group('storage', group_config)
 
+-- Trigger flaky.
 local cfg_template = {
     sharding = {
         {

test/storage-luatest/garbage_collector_test.lua

@@ -4,6 +4,7 @@ local vutil = require('vshard.util')
 
 local group_config = {{engine = 'memtx'}, {engine = 'vinyl'}}
 
+-- Trigger flaky.
 if vutil.feature.memtx_mvcc then
     table.insert(group_config, {
         engine = 'memtx', memtx_use_mvcc_engine = true