Add dependency management for micrometer-registry-stackdriver

Closes spring-projectsgh-16178

Author: izeye

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -964,6 +964,11 @@
 				<artifactId>micrometer-registry-signalfx</artifactId>
 				<version>${micrometer.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>io.micrometer</groupId>
+				<artifactId>micrometer-registry-stackdriver</artifactId>
+				<version>${micrometer.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>io.micrometer</groupId>
 				<artifactId>micrometer-registry-statsd</artifactId>