Bump gateway

[dominikl]

Bump Java gateway version to latest release. And also set Java to version 11.

[snoopycrimecop]

Conflicting PR. Removed from build OMERO-insight-push#162. See the console output for more details. Possible conflicts:

• PR #333 jburel 'drop compatibility to test new Jenkins'
  • build.gradle
• PR #436 dominikl 'Update apache common libs'
  • build.gradle

--conflicts

[snoopycrimecop]

Conflicting PR. Removed from build OMERO-insight-push#162. See the console output for more details. Possible conflicts:

• Upstream changes
  • build.gradle

--conflicts Conflict resolved in build OMERO-insight-push#163. See the console output for more details.