Edit changelog and add 1.4.13 release notes.

Author: jxblum

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

@@ -4,6 +4,20 @@ https://github.com/spring-projects/spring-boot-data-geode
 =========================================================
 
 
+Changes in version 1.4.13 (2021-11-18)
+--------------------------------------
+Aligns SBDG with Spring Boot 2.4.13.
+
+* Upgrades to Awaitility 4.1.1.
+* Upgrades to Byte Buddy 1.12.1.
+* Upgrades to Spring Framework 5.3.13.
+* Upgrades to Spring Boot 2.4.13.
+* Upgrades to Spring Data 2020.0.15 (Ockham-SR15).
+* Upgrades to Spring Data for Apache Geode 2.4.15.
+* Upgrades to Testcontainers 1.16.2.
+* Upgrades to VMware Tanzu (Pivotal) GemFire 9.10.10.
+
+
 Changes in version 1.4.12 (2021-10-21)
 --------------------------------------
 Aligns SBDG with Spring Boot 2.4.12.