Use Pulsar Client Reactive BOM

This replaces the individual module entries for the
`pulsar-client-reactive` library with a single import
entry for the `pulsar-client-reactive-bom` in order to
ease dependency management.

See gh-44202

Signed-off-by: Chris Bono <chris.bono@gmail.com>

spring-boot-project/spring-boot-dependencies/build.gradle

@@ -1813,12 +1813,8 @@ bom {
 	}
 	library("Pulsar Reactive", "0.5.10") {
 		group("org.apache.pulsar") {
-			modules = [
-				"pulsar-client-reactive-adapter",
-				"pulsar-client-reactive-api",
-				"pulsar-client-reactive-jackson",
-				"pulsar-client-reactive-producer-cache-caffeine-shaded",
-				"pulsar-client-reactive-producer-cache-caffeine"
+			imports = [
+				"pulsar-client-reactive-bom"
 			]
 		}
 		links {