Update dependency griefed/baseimage-ubuntu-jdk-8 to v2.0.9

This MR contains the following updates:

Package	Type	Update	Change
griefed/baseimage-ubuntu-jdk-8	image	patch	2.0.7 -> 2.0.9
griefed/baseimage-ubuntu-jdk-8	final	patch	2.0.7 -> 2.0.9
griefed/baseimage-ubuntu-jdk-8	stage	patch	2.0.7 -> 2.0.9

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.gitlab-ci.yml

@@ -357,7 +357,7 @@ coverage:
       cobertura: build/cobertura.xml
 
 Gradle Dependency-Checks:
-  image: griefed/baseimage-ubuntu-jdk-8:2.0.7
+  image: griefed/baseimage-ubuntu-jdk-8:2.0.9
   stage: Other
   allow_failure: true
   before_script: