Update version of com.j2bugzilla to 2.2

2.2-SNAPSHOT does not exist anymore on Maven Central and hence the
build is failing.

Change-Id: I8f4477273ee0a1bd308a48f1be52916bea121e24
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

pom.xml

diff --git a/pom.xml b/pom.xml
index 8b8ff4b..0bbb64a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -101,7 +101,7 @@
     <dependency>
       <groupId>com.j2bugzilla</groupId>
       <artifactId>j2bugzilla</artifactId>
-      <version>2.2-SNAPSHOT</version>
+      <version>2.2</version>
     </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>