LocalTime scalar does not implement valueToLiteral that is used by DGS

[markwimpory]

Describe the bug

DGS uses the valueToLiteral method on Cooercing. This has NOT been implements by the LocalTimeCooercinf class so we get an Unsupported Operation Exception. This scalar is also not in line with the other scalars that inline their coercing class.

java.lang.UnsupportedOperationException: The non deprecated version of valueToLiteral has not been implemented by this scalar : class graphql.scalars.datetime.LocalTimeCoercing

at graphql.schema.Coercing.valueToLiteral(Coercing.java:222)
at graphql.schema.Coercing.valueToLiteral(Coercing.java:240)
at com.netflix.graphql.dgs.client.codegen.InputValueSerializer.getOptionalValue(InputValueSerializer.kt:98)
at com.netflix.graphql.dgs.client.codegen.InputValueSerializer.toValue(InputValueSerializer.kt:70)
at com.netflix.graphql.dgs.client.codegen.InputValueSerializer.toValue$lambda$1(InputValueSerializer.kt:83)
at kotlin.sequences.TransformingSequence$iterator$1.next(Sequences.kt:210)
at kotlin.sequences.SequencesKt___SequencesKt.toList(_Sequences.kt:816)
at com.netflix.graphql.dgs.client.codegen.InputValueSerializer.toValue(InputValueSerializer.kt:84)
at com.netflix.graphql.dgs.client.codegen.GraphQLQueryRequest.serialize(GraphQLQueryRequest.kt:92)
at com.netflix.graphql.dgs.client.codegen.GraphQLQueryRequest.serialize(GraphQLQueryRequest.kt:75)
at uk.gov.hmpo.crpf.csor.birthapi.graphql.GraphQLClientHelper.getRequest(GraphQLClientHelper.java:85)
at uk.gov.hmpo.crpf.csor.birthapi.graphql.BirthCreationHelper.createSingleBirth(BirthCreationHelper.java:30)

To Reproduce

The following code implements this fix and adds a test for this scalar.

Make_LocalTime_scalar_the_same_as_other_scalars___Also_fixed_issue_where_valueToLiteral_wa1.patch