chore(deps): update docker.io/mongo docker tag to v8 (#188)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/mongo | major | `7.0.14` -> `8.0.0` |

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Reviewed-on: https://git.mgrote.net///mg/homeserver/pulls/188
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docker-compose/unifi-network-application/docker-compose.yml.j2

@@ -44,7 +44,7 @@ services:
     # 1. mongosh
     # 2. db.getSiblingDB("unifidb").createUser({user: "unifiuser", pwd: "GEHEIM", roles: [{role: "dbOwner", db: "unifidb"}, {role: "dbOwner", db: "unifidb_stat"}]});
     # https://discourse.linuxserver.io/t/cant-connect-to-mongodb-for-unifi-network-application/8166
-    image: "docker.io/mongo:7.0.14"
+    image: "docker.io/mongo:8.0.0"
     container_name: unifi-db
     volumes:
       - db-data:/data/db