Add(F9 system) lsof

`lsof` might come handy when debugging system-level things like lockfiles.

Change-Id: I7d2104f25c93d736680dc367c1bec5c39b2c2358

.ci/install_system_dependencies.sh

@@ -38,6 +38,7 @@ system_dependencies=(
         "linux-perf"
         "libssl-dev"
         "lshw"
+        "lsof"
         "man-db"
         "ncurses-term"
         "net-tools"