[Enhancement] Optimize LoadsHistorySyncer (backport #53864)

[mergify]

Why I'm doing:

1. If there are no load jobs, LoadsHistorySyncer still runs.
2. LoadsHistorySyncer does not ignore its own load job, so cause Infinite loop.

What I'm doing:

1. Record the last sync time, if there are no new load jobs, do not run sync SQL.
2. Ignore the LoadsHistorySyncer triggered dml SQL.

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

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarQube Cloud