Upgrade to MongoDB 5.0

See gh-39989

Author: christophstrobl

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/mongo/MongoReactiveAutoConfiguration.java

@@ -129,10 +129,8 @@ public void destroy() {
 			}
 		}
 
-		@SuppressWarnings("deprecation")
 		private boolean isCustomTransportConfiguration(MongoClientSettings settings) {
-			return settings != null
-					&& (settings.getTransportSettings() != null || settings.getStreamFactoryFactory() != null);
+			return settings != null && settings.getTransportSettings() != null;
 		}
 
 	}

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/mongo/MongoReactiveAutoConfigurationTests.java

@@ -230,7 +230,6 @@ void customizerWithTransportSettingsOverridesAutoConfig() {
 				assertThat(settings.getApplicationName()).isEqualTo("custom-transport-settings");
 				assertThat(settings.getTransportSettings())
 					.isSameAs(SimpleTransportSettingsCustomizerConfig.transportSettings);
-				assertThat(settings.getStreamFactoryFactory()).isNull();
 			});
 	}
 

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

@@ -1286,7 +1286,7 @@ bom {
 			releaseNotes("https://github.com/mockito/mockito/releases/tag/v{version}")
 		}
 	}
-	library("MongoDB", "4.11.1") {
+	library("MongoDB", "5.0.0") {
 		group("org.mongodb") {
 			modules = [
 				"bson",