Fix gluetun endpoint env var: use WIREGUARD_ENDPOINT_IP, drop port

gluetun rejects VPN_ENDPOINT_PORT when SERVER_NAMES is used (server
selection mode), and warns that VPN_ENDPOINT_IP is deprecated in
favour of WIREGUARD_ENDPOINT_IP. Use only WIREGUARD_ENDPOINT_IP;
port 51820 is ProtonVPN's default and doesn't need to be set.

servers/legion/k8s/fornax/worker/overlays/worker-tx253/kustomization.yaml

@@ -29,13 +29,8 @@ patches:
       - op: add
         path: /spec/template/spec/containers/0/env/-
         value:
-          name: VPN_ENDPOINT_IP
+          name: WIREGUARD_ENDPOINT_IP
           value: "95.173.217.29"
-      - op: add
-        path: /spec/template/spec/containers/0/env/-
-        value:
-          name: VPN_ENDPOINT_PORT
-          value: "51820"
       - op: replace
         path: /spec/template/spec/containers/1/env/1/value
         value: tx253

servers/legion/k8s/fornax/worker/overlays/worker-tx34/kustomization.yaml

@@ -29,13 +29,8 @@ patches:
       - op: add
         path: /spec/template/spec/containers/0/env/-
         value:
-          name: VPN_ENDPOINT_IP
+          name: WIREGUARD_ENDPOINT_IP
           value: "146.70.58.130"
-      - op: add
-        path: /spec/template/spec/containers/0/env/-
-        value:
-          name: VPN_ENDPOINT_PORT
-          value: "51820"
       - op: replace
         path: /spec/template/spec/containers/1/env/1/value
         value: tx34