Edit changelog and add 2.7.1 release notes.

Author: jxblum

spring-session-data-geode/src/main/resources/changelog.txt

@@ -4,6 +4,23 @@ https://github.com/spring-projects/spring-session-data-geode
 ============================================================
 
 
+Changes in version 2.7.1 (2022-09-23)
+-------------------------------------
+Aligns Spring Session for Apache Geode (SSDG) with Spring Session (core) 2.7.0
+
+* Upgrades to Spring Framework 5.3.23.
+* Upgrades to Spring Boot 2.7.4.
+* Upgrades to Spring Data BOM 2021.2.3 (Raj-SR3).
+* Upgrades to Spring Data Commons 2.7.3.
+* Upgrades to Spring Data for Apache Geode 2.7.3.
+* Upgrades to Spring Security 5.7.3.
+* Upgrades to Spring Session BOM 2021.2.0.
+* Upgrades to Spring Test for Apache Geode 0.3.1-RAJ.
+* Upgrades to Apache Log4j 2.19.0.
+* Upgrades to AssertJ 3.23.1.
+* Upgrades to Selenium HtmlUnit 3.61.0.
+
+
 Changes in version 2.6.2 (2022-09-23)
 -------------------------------------
 Aligns Spring Session for Apache Geode (SSDG) with Spring Session (core) 2.6.3.