[AMORO-2811][Bug][FLINK]: flink unified catalog doesn't support mixed_hive

[Aireed]

Why are the changes needed?

Close #2811 .

Brief change log

create table if not exists xxxx (
....
);

A unifiedCatalog which metastore is hms.

• when create a mixed-hive table:

  • If there is a table in mixed-hive format with the same name, the program can execute correctly with no error thrown and the table is not overwrited;
  • If there is a table in hive format with the same name, the program will throw an error,
  • If there is no table with the same name, a mixed-hive table will be created.

• when create a iceberg table

  • if there is a table in iceberg format with the same name, the program can execute correctly with no error ,and the table is not overwrited;
  • If there is no table with the same name, a iceberg table will be created.

• when create a mixed-iceberg table

  • If there is a table in iceberg format with the same name, the program can execute correctly with no error thrown and the table is not overwrited;
  • If there is a table in hive format with the same name, the program should thrown an error to indicate the table does exist;
  • If there is no table with the same name, an iceberg table will be created.

How was this patch tested?

• [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

• [ ] Add screenshots for manual tests if appropriate

• [x] Run test locally before making a pull request

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)

[Aireed]

cc @YesOrNo828 @xieyi888 PTAL.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 27.47%. Comparing base (a2753b6) to head (c17965a). Report is 8 commits behind head on master.

Files	Patch %	Lines
...rg/apache/amoro/hive/catalog/MixedHiveCatalog.java	0.00%	1 Missing :warning:

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2814      +/-   ##
============================================
- Coverage     35.95%   27.47%   -8.48%     
- Complexity      383     2483    +2100     
============================================
  Files            45      360     +315     
  Lines          4700    37210   +32510     
  Branches        513     5434    +4921     
============================================
+ Hits           1690    10225    +8535     
- Misses         2842    26026   +23184     
- Partials        168      959     +791     

Flag	Coverage Δ
trino	27.47% <0.00%> (-8.48%)	:arrow_down:

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