[Enhancement] Add more lock info in sys fe_locks

[wyb]

1. change start_time type to DATETIME
2. add hold_time_ms

mysql> select * from sys.fe_locks where lock_object = "tmp";
+-----------+-------------+-----------+---------------------+--------------+------------------------------------------------------------+---------+-------------------------------------------------------------------------------------------------+
| lock_type | lock_object | lock_mode | start_time          | hold_time_ms | thread_info                                                | granted | waiter_list                                                                                     |
+-----------+-------------+-----------+---------------------+--------------+------------------------------------------------------------+---------+-------------------------------------------------------------------------------------------------+
| DATABASE  | tmp         | EXCLUSIVE | 2024-01-12 14:23:09 |        66783 | {"threadId":683,"threadName":"starrocks-mysql-nio-pool-5"} |       1 | [{"threadId":133,"threadName":"COMPACTION_DISPATCH"},{"threadId":66,"threadName":"autovacuum"}] |
+-----------+-------------+-----------+---------------------+--------------+------------------------------------------------------------+---------+-------------------------------------------------------------------------------------------------+
1 row in set (0.01 sec)

Why I'm doing:

What I'm doing:

Fixes #issue

What type of PR is this:

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

Does this PR entail a change in behavior?

• Yes, this PR will result in a change in behavior.
• No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

• Interface/UI changes: syntax, type conversion, expression evaluation, display information
• Parameter changes: default values, similar parameters but with different default values
• Policy changes: use new policy to replace old one, functionality automatically enabled
• Feature removed
• Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr needs user documentation (for new or modified features or behaviors)
  • I have added documentation for my new feature or new function
• This is a backport pr

Bugfix cherry-pick branch check:

• I have checked the version labels which the pr will be auto-backported to the target branch
  • 3.2
  • 3.1
  • 3.0
  • 2.5

[sonarqubecloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[github-actions]

[FE Incremental Coverage Report]

✅ pass : 7 / 7 (100.00%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
🔵	com/starrocks/catalog/system/sys/SysFeLocks.java	7	7	100.00%	[]

[github-actions]

[BE Incremental Coverage Report]

❌ fail : 0 / 4 (00.00%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
🔵	src/exec/schema_scanner/sys_fe_locks.cpp	0	4	00.00%	[45, 57, 60, 62]

[github-actions]

@Mergifyio backport branch-3.2

[mergify]

backport branch-3.2

✅ Backports have been created

• #39155 [Enhancement] Add more lock info in sys fe_locks (backport #38973) has been created for branch branch-3.2