Bump pom-scijava

The new version uses a newer imagej-maven-plugin which allows easier
testing with Fiji by supporting the 'delete.other.versions' property:

	mvn -Dimagej.app.directory=.../fiji -Ddelete.other.versions=true

will install ImageJ2 into a Fiji working directory and delete obsolete
dependency versions in the latter.

For example, if Fiji's working directory has ImageJ2's .jar files at, say,
2.0.0-beta-8, they will be replaced by the current -SNAPSHOT version when
Maven is called as specified above. If the 'delete.other.versions'
property is not specified, it will default to 'false', meaning that Maven
will play it safe and only warn that there are now possibly-incompatible
file versions.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>