Polish "Add dependency management for Kotlin Coroutines"

See gh-17701

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -51,7 +51,6 @@
 		<commons-lang3.version>3.9</commons-lang3.version>
 		<commons-pool.version>1.6</commons-pool.version>
 		<commons-pool2.version>2.7.0</commons-pool2.version>
-		<coroutines.version>1.3.0-RC</coroutines.version>
 		<couchbase-client.version>2.7.7</couchbase-client.version>
 		<couchbase-cache-client.version>2.1.0</couchbase-cache-client.version>
 		<derby.version>10.14.2.0</derby.version>
@@ -140,6 +139,7 @@
 		<junit-jupiter.version>5.5.1</junit-jupiter.version>
 		<kafka.version>2.3.0</kafka.version>
 		<kotlin.version>1.3.41</kotlin.version>
+		<kotlin-coroutines.version>1.3.0-RC</kotlin-coroutines.version>
 		<lettuce.version>5.1.8.RELEASE</lettuce.version>
 		<liquibase.version>3.7.0</liquibase.version>
 		<log4j2.version>2.12.0</log4j2.version>
@@ -2599,7 +2599,7 @@
 			<dependency>
 				<groupId>org.jetbrains.kotlinx</groupId>
 				<artifactId>kotlinx-coroutines-bom</artifactId>
-				<version>${coroutines.version}</version>
+				<version>${kotlin-coroutines.version}</version>
 				<scope>import</scope>
 				<type>pom</type>
 			</dependency>