Add dependency management for some more of Jetty's modules

Closes gh-5155

spring-boot-dependencies/pom.xml

@@ -1326,6 +1326,11 @@
 				<artifactId>jetty-annotations</artifactId>
 				<version>${jetty.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.eclipse.jetty</groupId>
+				<artifactId>jetty-client</artifactId>
+				<version>${jetty.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>org.eclipse.jetty</groupId>
 				<artifactId>jetty-continuation</artifactId>
@@ -1412,6 +1417,11 @@
 				<artifactId>javax-websocket-server-impl</artifactId>
 				<version>${jetty.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.eclipse.jetty.websocket</groupId>
+				<artifactId>websocket-client</artifactId>
+				<version>${jetty.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>org.eclipse.jetty.websocket</groupId>
 				<artifactId>websocket-server</artifactId>