chore(k8s): router rewrite

- returned to Host matcher instead of Hostregexp
- switched dockercompose labels to letsencrypt
- renamed DoH route

dockmon/k8s/ingress.yaml

@@ -15,7 +15,7 @@ spec:
   entryPoints:
     - websecure
   routes:
-    - match: HostRegexp(`^dockmon\.forust\.xyz$`)
+    - match: Host(`dockmon.forust.xyz`)
       kind: Rule
       middlewares:
         - name: security-headers@file
@@ -41,4 +41,3 @@ spec:
         - name: dockmon-service
           port: 443
           serversTransport: dockmon-transport
-