GH-2327 - Adapt to deprecations in reactive Kotlin-Coroutines >= 1.5.

Closes #2327.

Author: michael-simons

src/main/kotlin/org/springframework/data/neo4j/core/ReactiveNeo4jOperationsExtensions.kt

@@ -17,8 +17,8 @@ package org.springframework.data.neo4j.core
 
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.reactive.asFlow
-import kotlinx.coroutines.reactive.awaitSingle
-import kotlinx.coroutines.reactive.awaitSingleOrNull
+import kotlinx.coroutines.reactor.awaitSingle
+import kotlinx.coroutines.reactor.awaitSingleOrNull
 import org.neo4j.cypherdsl.core.Statement
 import reactor.core.publisher.Mono
 

src/test/kotlin/org/springframework/data/neo4j/core/ReactiveNeo4jOperationsExtensionsTest.kt

@@ -19,7 +19,7 @@ import io.mockk.every
 import io.mockk.mockk
 import io.mockk.verify
 import kotlinx.coroutines.flow.toList
-import kotlinx.coroutines.reactive.awaitSingleOrNull
+import kotlinx.coroutines.reactor.awaitSingleOrNull
 import kotlinx.coroutines.runBlocking
 import org.assertj.core.api.Assertions.assertThat
 import org.junit.jupiter.api.Nested