build(deps): bump httpclient in /samplecode/mio/client-java

Bumps httpclient from 4.4 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/samplecode/mio/client-java/pom.xml b/samplecode/mio/client-java/pom.xml
index 843515f..2f38126 100644
--- a/samplecode/mio/client-java/pom.xml
+++ b/samplecode/mio/client-java/pom.xml
@@ -67,7 +67,7 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
-			<version>4.4</version>
+			<version>4.5.13</version>
 		</dependency>
 	</dependencies>