Use text blocks for multiline queries in `BaseDeltaLakeConnectorSmokeTest`

[findinpath]

Description

Draft used for having an overview of how using text blocks for the multilined SQL queries would improve the readability of the tests.

Is this change a fix, improvement, new feature, refactoring, or other? Code cosmetics

Is this a change to the core query engine, a connector, client library, or the SPI interfaces? (be specific)

N/A

How would you describe this change to a non-technical end user or system administrator?

N/A

[ebyhr]

CI failure seems related to this change.

Error:  io.trino.plugin.deltalake.TestDeltaLakeLegacyWriterConnectorSmokeTest.testCreatePartitionedTableAs  Time elapsed: 1.275 s  <<< FAILURE!
org.junit.ComparisonFailure: 
expected:<...,
   comment varchar[])
WITH (
   location...> but was:<...,
   comment varchar[
])
WITH (
   location...>
...

[ebyhr]

I guess the failure hit https://github.com/checkstyle/checkstyle/issues/11742 and we need to wait https://github.com/airlift/airbase/pull/323

Error:  src/test/java/io/trino/plugin/deltalake/BaseDeltaLakeConnectorSmokeTest.java:[323] (regexp) RegexpMultiline: Whitespace character before closing parenthesis
Error:  src/test/java/io/trino/plugin/deltalake/BaseDeltaLakeConnectorSmokeTest.java:[457] (regexp) RegexpMultiline: Whitespace character before closing parenthesis
Error:  src/test/java/io/trino/plugin/deltalake/BaseDeltaLakeConnectorSmokeTest.java:[1256] (regexp) RegexpMultiline: Whitespace character before closing parenthesis