upgrade to spring framework 4.3.21

Author: tomix26

README.md

@@ -373,7 +373,7 @@ extracted from the JDK download.
 
 * [PostgreSQL Binaries](https://github.com/zonkyio/embedded-postgres-binaries) (11.1)
 * [Embedded Postgres](https://github.com/zonkyio/embedded-postgres) (1.2.0) - a fork of [OpenTable Embedded PostgreSQL Component](https://github.com/opentable/otj-pg-embedded)
-* [Spring Framework](http://www.springsource.org/) (4.3.18) - `spring-test`, `spring-context` modules
+* [Spring Framework](http://www.springsource.org/) (4.3.21) - `spring-test`, `spring-context` modules
 * [Flyway](https://github.com/flyway/) (5.0.7)
 * [Guava](https://github.com/google/guava) (23.0)
 

build.gradle

@@ -148,8 +148,8 @@ project(':embedded-database-spring-test') {
         compile project(':embedded-database-spring-test-autoconfigure')
 
         compile 'io.zonky.test:embedded-postgres:1.2.0'
-        compile 'org.springframework:spring-context:4.3.18.RELEASE'
-        compile 'org.springframework:spring-test:4.3.18.RELEASE'
+        compile 'org.springframework:spring-context:4.3.21.RELEASE'
+        compile 'org.springframework:spring-test:4.3.21.RELEASE'
         compile "org.flywaydb:flyway-core:$flywayCoreVersion"
         compile "org.flywaydb.flyway-test-extensions:flyway-spring-test:$flywayTestVersion"
         compile 'com.google.guava:guava:23.0'