Update Spring Boot 2.7.11

See spring-attic#5308

Author: onobc

spring-cloud-dataflow-build/pom.xml

@@ -22,7 +22,7 @@
 		<docs.main>${project.artifactId}</docs.main>
 		<spring-cloud-dataflow-build.version>2.11.0-SNAPSHOT</spring-cloud-dataflow-build.version>
 		<!-- Keep spring boot version in sync between spring-cloud-dataflow-build and spring-boot-dependencies (parent and properties) -->
-		<spring-boot.version>2.7.10</spring-boot.version>
+		<spring-boot.version>2.7.11</spring-boot.version>
 		<docs.resources.dir>${project.build.directory}/build-docs</docs.resources.dir>
 		<refdocs.build.directory>${project.build.directory}/refdocs/</refdocs.build.directory>
 		<spring-doc-resources.version>0.1.0.RELEASE</spring-doc-resources.version>

spring-cloud-dataflow-build/spring-cloud-dataflow-build-dependencies/pom.xml

@@ -14,13 +14,13 @@
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-dependencies</artifactId>
 		<!-- Keep spring boot version in sync between spring-cloud-dataflow-build and spring-boot-dependencies (parent and properties) -->
-		<version>2.7.10</version>
+		<version>2.7.11</version>
 		<relativePath/>
 	</parent>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<!-- Keep spring boot version in sync between spring-cloud-dataflow-build and spring-boot-dependencies (parent and properties) -->
-		<spring-boot.version>2.7.10</spring-boot.version>
+		<spring-boot.version>2.7.11</spring-boot.version>
 		<spring-cloud.version>2021.0.6</spring-cloud.version>
 		<spring-shell.version>2.1.5</spring-shell.version>
 		<junit.version>4.13.1</junit.version>