Merge pull request #40343 from codefromthecrypt

* gh-40343:
  Upgrade to Zipkin Reporter 3.4.0

Closes gh-40343

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

@@ -122,7 +122,7 @@ bom {
 				.formatted(version.major(), version.minor()) }
 		}
 	}
-	library("Zipkin Reporter", "3.3.0") {
+	library("Zipkin Reporter", "3.4.0") {
 		group("io.zipkin.reporter2") {
 			imports = [
 				"zipkin-reporter-bom"