Update dependency org.apache.httpcomponents:fluent-hc to v4.5.10

Author: renovate-bot

build.gradle

@@ -36,7 +36,7 @@ dependencies {
     compile group: 'org.bitbucket.b_c', name: 'jose4j', version: '0.6.4'
 
     // For making HTTP requests
-    testCompile group: 'org.apache.httpcomponents', name: 'fluent-hc', version: '4.5.6'
+    testCompile group: 'org.apache.httpcomponents', name: 'fluent-hc', version: '4.5.10'
 
     // For testing, obviously
     testCompile group: 'org.junit.jupiter', name: 'junit-jupiter-api', version: '5.3.2'