Fixes: #7081
Review all reservations and limits set, test under stress load (using
both memory and CPU).
The goal: system components (Talos itself) and runtime (kubelet, CRI)
should survive under extreme resource starvation (workloads consuming
all CPU/memory).
Uses #9337 to visualize changes, but doesn't depend on it.
Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
