Updated HK2 version (#4234)

HK2 2.6.1
HK2 config 5.1.0

Signed-off-by: Jan Supol <jan.supol@oracle.com>

Author: jansupol

pom.xml

@@ -2074,8 +2074,8 @@
         <guava.version>18.0</guava.version>
         <hamcrest.version>1.3</hamcrest.version>
         <xmlunit.version>1.6</xmlunit.version>
-        <hk2.version>2.5.0</hk2.version>
-        <hk2.config.version>5.1.0-RC2</hk2.config.version>
+        <hk2.version>2.6.1</hk2.version>
+        <hk2.config.version>5.1.0</hk2.config.version>
         <httpclient.version>4.5.9</httpclient.version>
         <istack.commons.runtime.version>3.0.8</istack.commons.runtime.version>
         <jackson.version>2.9.9</jackson.version>