Add dependencies required for javadoc generation

See gh-9970

Author: wilkinsona

spring-boot-docs/pom.xml

@@ -186,6 +186,46 @@
 			<artifactId>lettuce-core</artifactId>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-atlas-starter</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-core</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-datadog-starter</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-ganglia-starter</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-graphite-starter</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-influx-starter</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-jmx-starter</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>io.micrometer</groupId>
+			<artifactId>micrometer-prometheus-starter</artifactId>
+			<optional>true</optional>
+		</dependency>
 		<dependency>
 			<groupId>io.projectreactor.ipc</groupId>
 			<artifactId>reactor-netty</artifactId>