remove deprecate compress options and use default ones

see also https://bugs.openjdk.org/browse/JDK-8301124?jql=text%20~%20%22compress%22

dist/linux/appimage/build.sh

@@ -60,8 +60,7 @@ ${JAVA_HOME}/bin/jlink \
     --strip-native-commands \
     --no-header-files \
     --no-man-pages \
-    --strip-debug \
-    --compress=1
+    --strip-debug
 
 # create app dir
 envsubst '${SEMVER_STR} ${REVISION_NUM}' < ../launcher-gtk2.properties > launcher-gtk2.properties

dist/linux/debian/rules

@@ -31,8 +31,7 @@ override_dh_auto_build:
 		--strip-native-commands \
 		--no-header-files \
 		--no-man-pages \
-		--strip-debug \
-		--compress=2
+		--strip-debug
 	$(JAVA_HOME)/bin/jpackage \
 		--type app-image \
 		--runtime-image runtime \