Update org.springframework:spring-core to 5.3.20 (#1850) (#1853)

(cherry picked from commit 4c9e403)

Co-authored-by: Peter Nied <petern@amazon.com>

Author: opensearch-trigger-bot[bot]

build.gradle

@@ -78,7 +78,7 @@ configurations.all {
         force 'commons-cli:commons-cli:1.3.1'
         force 'org.apache.httpcomponents:httpcore:4.4.12'
         force "org.apache.commons:commons-lang3:3.4"
-        force "org.springframework:spring-core:5.3.19"
+        force "org.springframework:spring-core:5.3.20"
         force "com.google.guava:guava:30.0-jre"
     }
 }
@@ -122,7 +122,7 @@ dependencies {
     testImplementation 'junit:junit:4.13.1'
     testImplementation 'org.apache.httpcomponents:fluent-hc:4.5.13'
     testImplementation 'org.mockito:mockito-core:2.23.0'
-    testImplementation 'org.springframework.kafka:spring-kafka-test:2.8.5'
+    testImplementation 'org.springframework.kafka:spring-kafka-test:2.8.6'
     testImplementation 'javax.servlet:servlet-api:2.5'
     testImplementation 'com.unboundid:unboundid-ldapsdk:4.0.9'
     testImplementation 'com.github.stephenc.jcip:jcip-annotations:1.0-1'