Adds all Observability related BOMs

* OpenTelemetry-Alpha bom
* Zipkin-bom

until now, Micrometer Tracing BOM accidentally provided those BOMs

Author: marcingrzejszczak

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

@@ -1114,6 +1114,13 @@ bom {
 			]
 		}
 	}
+	library("OpenTelemetry-Alpha", "1.18.0-alpha") {
+		group("io.opentelemetry") {
+			imports = [
+				"opentelemetry-bom-alpha"
+			]
+		}
+	}
 	library("Oracle Database", "21.7.0.0") {
 		group("com.oracle.database.jdbc") {
 			imports = [
@@ -1642,10 +1649,10 @@ bom {
 			]
 		}
 	}
-	library("Zipkin", "2.16.3") {
-		group("io.zipkin.reporter2") {
-			modules = [
-				"zipkin-sender-urlconnection"
+	library("Zipkin", "5.14.1") {
+		group("io.zipkin.brave") {
+			imports = [
+				"brave-bom"
 			]
 		}
 	}