update CI after libeasy update

gitlab-ci/install-dependencies.sh

@@ -26,7 +26,7 @@ exec_cmd git clone -b devel https://dev.iopsys.eu/iopsys/libeasy.git
 cd libeasy
 exec_cmd make CFLAGS+="-I/usr/include/libnl3"
 exec_cmd cp -a libeasy*.so* /usr/lib
-exec_cmd cp -a easy.h event.h utils.h if_utils.h debug.h hlist.h bufutil.h cryptutil.h ecc_cryptutil.h /usr/include/easy/
+exec_cmd cp -a easy.h event.h utils.h if_utils.h debug.h hlist.h bufutil.h cryptutil.h ecc_cryptutil.h timestamp.h /usr/include/easy/
 
 cd /opt/dev
 rm -fr libwifi