Update test helper and all workflows to enble libsystemd build

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

test/check.sh

@@ -25,7 +25,8 @@ if [ "$run_make" -eq 1 ]; then
 fi
 
 ./configure --prefix=/usr --exec-prefix= --sysconfdir=/etc --localstatedir=/var	\
-	    --enable-x11-common-plugin --with-watchdog --with-keventd		\
+	    --enable-x11-common-plugin --enable-testserv-plugin --with-watchdog \
+            --with-keventd --with-libsystemd                                    \
 	    CFLAGS='-fsanitize=address -ggdb'
 
 if [ "$run_make" -eq 1 ]; then