bump maven version to 3.8.9

Signed-off-by: trisberg <thomas.risberg@broadcom.com>

Author: trisberg

.github/actions/build-sample-app/action.yml

@@ -63,7 +63,7 @@ runs:
 
     - uses: jvalkeal/setup-maven@v1
       with:
-        maven-version: 3.8.8
+        maven-version: 3.8.9
         maven-mirror: 'https://dlcdn.apache.org/maven/maven-3/'
 
     - name: Maven build