Update jsch version used in pom.xml to 0.1.54

We updated the version we use for packaging the p2 repository in
efbecb97 but missed to update the version we compile against in the
Maven build.

Bug: 513354
Change-Id: I49afd89b43cfd8735568a86ef273723909d694a3
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

pom.xml

@@ -192,7 +192,7 @@
     <bundle-manifest>${project.build.directory}/META-INF/MANIFEST.MF</bundle-manifest>
 
     <jgit-last-release-version>4.2.0.201601211800-r</jgit-last-release-version>
-    <jsch-version>0.1.53</jsch-version>
+    <jsch-version>0.1.54</jsch-version>
     <javaewah-version>1.1.6</javaewah-version>
     <junit-version>4.12</junit-version>
     <test-fork-count>1C</test-fork-count>