[FLINK-39385][table] TIMESTAMPDIFF fails for TIME

[snuyanzin]

What is the purpose of the change

The PR is going to fix queries like

SELECT TIMESTAMPDIFF(SECOND, TIME'12:12:12', TIME'12:12:13')

Brief change log

ScalarOperationGen

Verifying this change

Tests are added

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)
• If yes, how is the feature documented? (not applicable)

[flinkbot]

CI report:

• 89556a8 Azure: FAILURE
• ac0629c Azure: PENDING

Bot commands

The @flinkbot bot supports the following commands:

• @flinkbot run azure re-run the last Azure build