Bump httpclient from 4.5.10 to 4.5.13

Bumps httpclient from 4.5.10 to 4.5.13.

---
updated-dependencies:
- dependency-name: org.apache.httpcomponents:httpclient
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -40,7 +40,7 @@
 
   <properties>
     <java.version>1.8</java.version>
-    <httpclient.version>4.5.10</httpclient.version>
+    <httpclient.version>4.5.13</httpclient.version>
     <jackson.version>2.10.0</jackson.version>
     <jgit.version>4.5.0.201609210915-r</jgit.version>
     <maven.version>3.5.4</maven.version>