Bump httpclient from 4.5.7 to 4.5.13

Bumps httpclient from 4.5.7 to 4.5.13.

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 40a7bcb..a77f4bb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -252,7 +252,7 @@
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>
       <artifactId>httpclient</artifactId>
-      <version>4.5.7</version>
+      <version>4.5.13</version>
       <exclusions>
         <exclusion>
           <artifactId>commons-logging</artifactId>