Stale ebpf maps if agent stops abruptly

**Describe the bug**

If agent pod is OOMKIlled, `Packetparser` leaves behind stale maps and qdiscs. These are never cleaned up on restart.

**To Reproduce**
Steps to reproduce the behavior:

1. Deploy retina-advanced
2. Exec into a node and kill the `controller` process repeatedly
3. Check maps and qdiscs

**Expected behavior**
Only one instance of maps should exist for each plugin and one ingress/egress qdisc for each veth.

**Platform (please complete the following information):**

- OS: Linux
- Kubernetes Version: 1.29
- Host: AKS
- Retina Version: current

**Additional context**
Suggestion - Cleanup should happen in init container (probably we need privilege to clean up residual maps and qdiscs)