pkg/domain: Test case `TestGetLastExpectedTime` failed in `Australia/Lord_Howe` timezone.

[bb7133]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

Run TestGetLastExpectedTime in TZ Australia/Lord_Howe:

➜  tidb git:(master) ✗ TZ="Australia/Lord_Howe" go test --tags=intest -run ^TestGetLastExpectedTime$ "github.com/pingcap/tidb/pkg/domain"

--- FAIL: TestGetLastExpectedTime (0.00s)
    ru_stats_test.go:144:
        	Error Trace:	/Users/bb7133/Projects/gopath/src/github.com/pingcap/tidb/pkg/domain/ru_stats_test.go:144
        	Error:      	Not equal:
        	            	expected: time.Date(2023, time.December, 28, 10, 0, 0, 0, time.Local)
        	            	actual  : time.Date(2023, time.December, 28, 9, 0, 0, 0, time.Local)

        	            	Diff:
        	            	--- Expected
        	            	+++ Actual
        	            	@@ -1,2 +1,2 @@
        	            	-(time.Time) 2023-12-28 10:00:00 +1100 +11
        	            	+(time.Time) 2023-12-28 09:00:00 +1100 +11

        	Test:       	TestGetLastExpectedTime
FAIL
FAIL	github.com/pingcap/tidb/pkg/domain	1.402s
FAIL

4. What is your TiDB version? (Required)

Latest master(555ce02)

[bb7133]

BTW, TestWriteRUStatistics fails, too.

[glorv]

Found actually v7.5 does not contains this feature.