Update dependency org.apache.httpcomponents.client5:httpclient5 to v5.6.1

Author: renovate[bot]

gradle.properties

@@ -2,7 +2,7 @@ group=com.opencagedata
 artifactId=jopencage
 version=3.0.0
 
-httpClientVersion=5.6
+httpClientVersion=5.6.1
 jacksonCoreVersion=2.21.2
 jacksonAnnoVersion=2.21