[Enhancement] Unified Catalog support Paimon

[mxdzs0612]

Why I'm doing:

Make unified catalog support paimon data sources.

example:

CREATE EXTERNAL CATALOG unified
PROPERTIES
(
    "type" = "unified",
    "unified.metastore.type" = "hive",
    "hive.metastore.uris" = "thrift://localhost:9083",
    "paimon.catalog.warehouse" = "hdfs://127.0.0.1:9000/paimon",
);

What I'm doing:

Fixes #issue

What type of PR is this:

• [ ] BugFix
• [ ] Feature
• [x] Enhancement
• [ ] Refactor
• [ ] UT
• [ ] Doc
• [ ] Tool

Does this PR entail a change in behavior?

• [ ] Yes, this PR will result in a change in behavior.
• [x] 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:

• [x] 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:

• [x] I have checked the version labels which the pr will be auto-backported to the target branch
  • [x] 3.3
  • [x] 3.2
  • [ ] 3.1
  • [ ] 3.0
  • [ ] 2.5

[sonarqubecloud[bot]]

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 SonarCloud

[stephen-shelby]

please rebase main

[sonarqubecloud[bot]]

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 SonarCloud

[github-actions[bot]]

[FE Incremental Coverage Report]

:white_check_mark: pass : 17 / 20 (85.00%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
:large_blue_circle:	com/starrocks/connector/unified/UnifiedMetadata.java	1	2	50.00%	[103]
:large_blue_circle:	com/starrocks/catalog/PaimonTable.java	3	5	60.00%	[47, 48]
:large_blue_circle:	com/starrocks/connector/paimon/PaimonConnector.java	2	2	100.00%	[]
:large_blue_circle:	com/starrocks/connector/unified/UnifiedConnector.java	11	11	100.00%	[]

[github-actions[bot]]

[BE Incremental Coverage Report]

:white_check_mark: pass : 0 / 0 (0%)

[github-actions[bot]]

@Mergifyio backport branch-3.3

[github-actions[bot]]

@Mergifyio backport branch-3.2

[mergify[bot]]

backport branch-3.3

✅ Backports have been created

• #52744 [Enhancement] Unified Catalog support Paimon (backport #47398) has been created for branch branch-3.3 but encountered conflicts

[mergify[bot]]

backport branch-3.2

✅ Backports have been created

• #52745 [Enhancement] Unified Catalog support Paimon (backport #47398) has been created for branch branch-3.2 but encountered conflicts

[wangsimo0]

ignore backport check: 3.3.6