Viste

Results 3 issues of Viste

Service with @ in name keep their metrics in /sys/fs/cgroup/memory/system.slice/system-dbus.slice/dbus.service/memory.stat for example: `/sys/fs/cgroup/memory/system.slice/system-somectl.scheduler.slice/[email protected]`

remove unnecessary unrefs to dbus message introduced in https://github.com/cavaliercoder/zabbix-module-systemd/commit/c6c2c26f2c995167ba2da0508de013bddcc73b19 because they break `systemd.service.info[]` key this fix don't open memleak again just remove my excessive desire to free up memory.

**What happened**: All VMs terminates after run because of can't start tap0: `{"component":"virt-handler","level":"info","msg":"Generic Allocate: resourceName: tun","pos":"generic_device.go:242","timestamp":"2023-10-16T11:53:30.119235Z"} {"component":"virt-handler","level":"info","msg":"Generic Allocate: request: [&ContainerAllocateRequest{DevicesIDs:[tun391],}]","pos":"generic_device.go:243","timestamp":"2023-10-16T11:53:30.119333Z"} {"component":"virt-handler","kind":"","level":"info","msg":"VMI is in phase: Scheduled | Domain does not exist","name":"core-build-win01","namespace":"default","pos":"vm.go:1759","timestamp":"2023-10-16T11:53:32.560467Z","uid":"09415d56-18bd-4c4b-ab1e-da693a96630f"}...

kind/bug
lifecycle/stale