[Enhancement] Add retry metrics for sink version V1

[banmoy]

What type of PR is this：

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Which issues of this PR fixes ：

Fixes #

Problem Summary(Required) ：

some useful metrics for sink V1. flushTimeNsWithRetry, totalFlushRetry and flushRetry are added in this PR

metric	描述	类型	单位
totalFlushRows	flush数据总条数	counter
totalFlushBytes	flush数据总bytes	counter	byte
totalFlushSucceededTimes	flush次数	counter
totalFlushTimeNs	flush数据总耗时(包括重试)	counter	nano
totalFlushTimeNsWithoutRetries	flush数据总耗时(不包括重试)	counter	nano
flushTimeNs	成功flush的耗时(不包括重试)	Histogram	nano
flushTimeNsWithRetry	成功flush的耗时(包括重试)	Histogram	nano
totalFlushRetry	所有成功flush的重试总数	counter
flushRetry	成功flush的重试数	Histogram

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr will affect users' behaviors
• This pr needs user documentation (for new or modified features or behaviors)
• I have added documentation for my new feature or new function