Update to Spring Framework 5.3.19

Closes gh-640

Author: jzheaux

dependencies/build.gradle

@@ -14,7 +14,7 @@ repositories {
 ext.queryDslVersion = '4.0.9'
 
 dependencies {
-	api platform("org.springframework:spring-framework-bom:5.3.15")
+	api platform("org.springframework:spring-framework-bom:5.3.19")
 	api platform("org.junit:junit-bom:5.8.1")
 	api platform("org.springframework.data:spring-data-bom:2021.0.8")
 	api platform("com.fasterxml.jackson:jackson-bom:2.13.0")