Merge pull request #176 from salesforce/snyk-upgrade-d6e87b9feed26696ad824fe990ef9f29

[Snyk] Upgrade org.springframework:spring-context from 4.2.0.RELEASE to 4.3.30.RELEASE

Author: nikolay-pshenichny

contrib/pom.xml

@@ -64,7 +64,7 @@
         <slf4j.version>1.7.21</slf4j.version>
         <gson.version>2.7</gson.version> <!-- Same version as grpc-proto -->
         <mustache-java.version>0.9.4</mustache-java.version>
-        <spring.version>4.2.0.RELEASE</spring.version>
+        <spring.version>4.3.30.RELEASE</spring.version>
 
         <!-- Test Dependency Versions -->
         <junit.version>4.13.1</junit.version>