Update Javadoc since for OtlpMetricsProperties and OtlpTracingProperties

See gh-43249

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/export/otlp/OtlpMetricsProperties.java

@@ -32,7 +32,7 @@ import org.springframework.boot.context.properties.DeprecatedConfigurationProper
  *
  * @author Eddú Meléndez
  * @author Jonatan Ivanov
- * @since 3.0.0
+ * @since 3.4.0
  */
 @ConfigurationProperties(prefix = "management.otlp.metrics.export")
 public class OtlpMetricsProperties extends StepRegistryProperties {

spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/tracing/otlp/OtlpTracingProperties.java

@@ -26,7 +26,7 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
  * Configuration properties for exporting traces using OTLP.
  *
  * @author Jonatan Ivanov
- * @since 3.1.0
+ * @since 3.4.0
  */
 @ConfigurationProperties("management.otlp.tracing")
 public class OtlpTracingProperties {