@xkaraman this change broke the build

``` cmake --build /home/runner/work/kamailio/kamailio/build -j8 [ 0%] Building C object src/modules/acc/CMakeFiles/acc.dir/acc.c.o [ 0%] Building C object src/modules/acc/CMakeFiles/acc.dir/acc_cdr.c.o gmake[2]: *** No rule to make target 'src/modules/xprint_doc', needed by 'src/modules/CMakeFiles/kamailio_docs'. Stop. [ 0%] Generating cfg.tab.c and cfg.tab.h from cfg.y gmake[1]: *** [CMakeFiles/Makefile2:3444: src/modules/CMakeFiles/kamailio_docs.dir/all] Error 2 [ 0%] Building C object src/modules/alias_db/CMakeFiles/alias_db.dir/alias_db.c.o gmake[1]: *** Waiting for unfinished jobs.... ```