Fix apache httpclient to version 4.5.13

Managing and fixing the http client to a specific version works
around resolving the dependency to different versions in plugins.
This would cause unexpected problems as described in
aws/aws-sdk-java-v2#1795

Author: thll

graylog-project-parent/pom.xml

@@ -564,6 +564,11 @@
                 <artifactId>unboundid-ldapsdk</artifactId>
                 <version>${unboundid-ldap.version}</version>
             </dependency>
+            <dependency>
+                <groupId>org.apache.httpcomponents</groupId>
+                <artifactId>httpclient</artifactId>
+                <version>${apache-httpclient.version}</version>
+            </dependency>
 
             <!-- Test dependencies -->
             <dependency>

graylog2-server/pom.xml

@@ -673,6 +673,10 @@
             <version>1.5.0</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.apache.httpcomponents</groupId>
+            <artifactId>httpclient</artifactId>
+        </dependency>
     </dependencies>
 
     <build>

pom.xml

@@ -90,6 +90,7 @@
         <amqp-client.version>5.8.0</amqp-client.version>
         <antlr.version>4.8-1</antlr.version>
         <apache-directory-version>1.0.3</apache-directory-version>
+        <apache-httpclient.version>4.5.13</apache-httpclient.version>
         <auto-value.version>1.7.4</auto-value.version>
         <auto-value-javabean.version>2.5.2</auto-value-javabean.version>
         <bouncycastle.version>1.64</bouncycastle.version>