Fixes https://github.com/siderolabs/extensions/issues/448 Bundle some CNI standard plugins plus Flannel CNI plugin (as Flannel is the default CNI in Talos) in the Talos `initramfs`. With this change, no plugin install is required, so the `install-cni` step is dropped from the Flannel default manifest. The bundled plugins: ``` $ talosctl -n 172.20.0.2 ls -lH /opt/cni/bin/ NODE MODE UID GID SIZE(B) LASTMOD NAME 172.20.0.2 drwxr-xr-x 0 0 109 B 7 hours ago . 172.20.0.2 -rwxr-xr-x 0 0 3.2 MB 7 hours ago bridge 172.20.0.2 -rwxr-xr-x 0 0 3.3 MB 7 hours ago firewall 172.20.0.2 -rwxr-xr-x 0 0 2.4 MB 7 hours ago flannel 172.20.0.2 -rwxr-xr-x 0 0 2.4 MB 7 hours ago host-local 172.20.0.2 -rwxr-xr-x 0 0 2.4 MB 7 hours ago loopback 172.20.0.2 -rwxr-xr-x 0 0 2.8 MB 7 hours ago portmap ``` The `initramfs` for amd64 grows 67 -> 73 MiB with this change. The path `/opt/cni/bin` is still an overlay mount, so extra plugins can be dropped to this directory (no change here). Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>