[FLINK-39899] Fix Flink SQL rowtime attributes after Window TVF

[shanzi]

What is the purpose of the change

This MR is to fix FLINK-39899 which allows original rowtime keep to be rowtime attribute after Window TVF, where a new window_time is added as the correct rowtime attribute. This not only mismatches the original design in FLIP-145. ("The original row time attribute "timecol" will be a regular timestamp column after applying window TVF."), but also can lead to dropped results and incorrect result when misused.

This change is to fix the issue: after Window TVF, only one rowtime attribute will be left.

Brief change log

• Updated SqlWindowTableFunction to fix the rowtime attribute
• Updated a logical and physical WindowTableFunctionTransposeRule to align the behavior
• Updated unit tests and planner xml to fix tests

Verifying this change

Please make sure both new and modified tests in this PR follow the conventions for tests defined in our code quality guide.

This change added tests and can be verified as follows:

• Planner output xml has been updated to verify the original rowtime is no loger rowtime attribute after Window TVF
• WindowTableFunctionTest is updated to verify the behavior.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): no
• The public API, i.e., is any changed class annotated with @Public(Evolving): no
• The serializers: no
• The runtime per-record code paths (performance sensitive): no
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
• The S3 file system connector: no

Documentation

• Does this pull request introduce a new feature? no

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CI report:

• 876ea21 Azure: SUCCESS

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