Merge pull request #7022 from Kazuki Shimizu

* gh-7022:
  Add dependency management for jetty-proxy

spring-boot-dependencies/pom.xml

@@ -1566,6 +1566,11 @@
 				<artifactId>jetty-plus</artifactId>
 				<version>${jetty.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.eclipse.jetty</groupId>
+				<artifactId>jetty-proxy</artifactId>
+				<version>${jetty.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>org.eclipse.jetty</groupId>
 				<artifactId>jetty-security</artifactId>