AMBARI-23141. Fix BlackDuck found security issues in Ambari Functional Tests (#551)

ambari-funtest/pom.xml

@@ -437,6 +437,12 @@
       <groupId>org.apache.velocity</groupId>
       <artifactId>velocity</artifactId>
       <version>1.7</version>
+      <exclusions>
+        <exclusion>
+            <groupId>commons-collections</groupId>
+            <artifactId>commons-collections</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
     <dependency>
       <groupId>com.sun.mail</groupId>
@@ -489,7 +495,6 @@
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>
       <artifactId>httpclient</artifactId>
-      <version>4.5.2</version>
     </dependency>
   </dependencies>
 </project>