feat: Rewrote render tool in rust

This also came with a big rework of the configuration format that should
make everything a bit less hacky to work with.

talos/patches/networking/tailscale.yaml

@@ -0,0 +1,8 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/siderolabs/talos/refs/heads/release-1.11/website/content/v1.11/schemas/config.schema.json
+apiVersion: v1alpha1
+kind: ExtensionServiceConfig
+name: tailscale
+environment:
+  - TS_AUTHKEY={{ node.network.tailscale.authKey }}
+  - TS_EXTRA_ARGS={% if node.network.tailscale.server %}--login-server {{ node.network.tailscale.server }} {% endif %}--advertise-tags=tag:cluster-{{ cluster.name }}
+  - TS_ROUTES={% if node.network.tailscale.advertiseRoutes %}{{apply_netmask(node.network.ip, node.network.netmask)}}/{{ node.network.netmask | to_prefix }}{% endif %}