[Feature] add sys.fe_memory_usage table

[Astralidea]

Why I'm doing:
Although we have log monitoring, for some environments, users may not have a way to directly obtain log information and view it, so we expose a metadata table to check the current memory statistics.

What I'm doing:

Fixes #issue

+--------------+------------------------------+---------------------+------------------+------------------------------------------------------------+
| module_name  | class_name                   | current_consumption | peak_consumption | counter_info                                               |
+--------------+------------------------------+---------------------+------------------+------------------------------------------------------------+
| Delete       | DeleteMgr                    |                 416 |              416 | {"DeleteInfo":0}                                           |
| Load         | LoadMgr                      |            12187384 |         12187384 | {"LoadJob":0}                                              |
| Load         | RoutineLoadMgr               |                 592 |              592 | {"RoutineLoad":0}                                          |
| Load         | StreamLoadMgr                |                 376 |              376 | {"StreamLoad":0}                                           |
| Task         | TaskManager                  |                  80 |               80 | {"Task":0}                                                 |
| Task         | TaskRunManager               |            12187384 |         12187384 | {"PendingTaskRun":0,"RunningTaskRun":0,"HistoryTaskRun":0} |
| Report       | ReportHandler                |            12188992 |         12188992 | {"PendingTask":0,"ReportQueue":0}                          |
| Backup       | BackupHandler                |            12183864 |         14562256 | {"BackupOrRestoreJob":0}                                   |
| Coordinator  | QeProcessorImpl              |                 240 |              240 | {"QueryInfo":0}                                            |
| Profile      | ProfileManager               |                 112 |              112 | {"Profile":0,"LoadProfile":0}                              |
| Transaction  | GlobalTransactionMgr         |            12183864 |         12183864 | {"Transaction":0}                                          |
| Dict         | CacheDictManager             |            12188768 |         12188768 | {"ColumnDict":0}                                           |
| Export       | ExportMgr                    |                 248 |              248 | {"ExportJob":0}                                            |
| Tablet       | TabletInvertedIndex          |               30168 |            30168 | {"TabletMeta":48}                                          |
| LocalCatalog | InternalCatalogMemoryTracker |               33424 |            33424 | {"Partition":5}                                            |
+--------------+------------------------------+---------------------+------------------+------------------------------------------------------------+

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

[imay]

Add some sql-test to cover this new sys table

[sonarcloud]

Quality Gate passed

The SonarCloud Quality Gate passed, but some issues were introduced.

5 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 : 44 / 47 (93.62%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
🔵	com/starrocks/catalog/system/sys/SysFeMemoryUsage.java	28	31	90.32%	[35, 64, 65]
🔵	com/starrocks/catalog/system/sys/SysDb.java	1	1	100.00%	[]
🔵	com/starrocks/service/FrontendServiceImpl.java	1	1	100.00%	[]
🔵	com/starrocks/memory/MemoryStat.java	3	3	100.00%	[]
🔵	com/starrocks/memory/MemoryUsageTracker.java	11	11	100.00%	[]

[github-actions]

[BE Incremental Coverage Report]

✅ pass : 34 / 34 (100.00%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
🔵	be/src/exec/schema_scanner.cpp	2	2	100.00%	[]
🔵	be/src/exec/schema_scanner/sys_fe_memory_usage.cpp	29	29	100.00%	[]
🔵	be/src/exec/schema_scanner/schema_helper.cpp	3	3	100.00%	[]

[Astralidea]

https://github.com/Mergifyio backport branch-3.2

[mergify]

backport branch-3.2

✅ Backports have been created

• #41078 [Feature] add sys.fe_memory_usage table (backport #40464) has been created for branch branch-3.2 but encountered conflicts