fix: update CI/CD workflows to install fakeroot before jpackage

- Modified the build and test workflows to include the installation of fakeroot prior to executing the jpackage command, ensuring successful packaging of the application for multi-architecture builds.

Author: pflooky

.github/workflows/build.yml

@@ -165,7 +165,7 @@ jobs:
             -v $(pwd):/workspace \
             -w /workspace \
             arm64v8/eclipse-temurin:21-jdk \
-            bash -c "jpackage --main-jar data-caterer.jar '@misc/jpackage/jpackage.cfg' '@misc/jpackage/jpackage-linux.cfg'"
+            bash -c "apt-get update && apt-get install -y fakeroot && jpackage --main-jar data-caterer.jar '@misc/jpackage/jpackage.cfg' '@misc/jpackage/jpackage-linux.cfg'"
 
       - name: List directory
         run: ls -lart

.github/workflows/test-build-linux-aarch64.yml

@@ -75,7 +75,7 @@ jobs:
             -v $(pwd):/workspace \
             -w /workspace \
             arm64v8/eclipse-temurin:21-jdk \
-            bash -c "jpackage --main-jar data-caterer.jar '@misc/jpackage/jpackage.cfg' '@misc/jpackage/jpackage-linux.cfg'"
+            bash -c "apt-get update && apt-get install -y fakeroot && jpackage --main-jar data-caterer.jar '@misc/jpackage/jpackage.cfg' '@misc/jpackage/jpackage-linux.cfg'"
 
       - name: List directory
         run: ls -lart