Bump httpclient5 from 5.0 to 5.2.1

Bumps [httpclient5](https://github.com/apache/httpcomponents-client) from 5.0 to 5.2.1.
- [Release notes](https://github.com/apache/httpcomponents-client/releases)
- [Changelog](https://github.com/apache/httpcomponents-client/blob/master/RELEASE_NOTES.txt)
- [Commits](apache/httpcomponents-client@rel/v5.0...rel/v5.2.1)

---
updated-dependencies:
- dependency-name: org.apache.httpcomponents.client5:httpclient5
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -353,7 +353,7 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents.client5</groupId>
 			<artifactId>httpclient5</artifactId>
-			<version>5.0</version>
+			<version>5.2.1</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>