No tests for mapper Date

[ArtDu]

Create a test that shows the mapping behavior of the Date data type from java to tarantool. What type of data is the conversion expected to be? (Number by my testing)

@Schema(description = "Some date")
private Date date;

And this look strange:

cartridge-springdata/src/main/java/org/springframework/data/tarantool/core/convert/DateConverters.java

Lines 28 to 29 in ed7e3b4

	boolean useISOStringConverterForDate = Boolean
	.parseBoolean(System.getProperty("org.springframework.data.couchbase.useISOStringConverterForDate", "false"));

It is also necessary to discuss why some converters are in cartridge-java, and some must be related to spring converters. This is necessary in order to understand which pipeline the date passes from spring to tarantool, or from carg-java to tarantool.

[ArtDu]

Perhaps it is worth digging somewhere else how to work with tdg and Date