chore(deps): update mongodb/mongodb-community-server docker tag to v8

| datasource | package                          | from   | to    |
| ---------- | -------------------------------- | ------ | ----- |
| docker     | mongodb/mongodb-community-server | 7.0.15 | 8.0.3 |

embedded-mongodb/README.adoc

@@ -16,7 +16,7 @@
 
 * `embedded.mongodb.enabled` `(true|false, default is true)`
 * `embedded.mongodb.reuseContainer` `(true|false, default is false)`
-* `embedded.mongodb.dockerImage` `(default is 'mongodb/mongodb-community-server:7.0.15-ubuntu2204')`
+* `embedded.mongodb.dockerImage` `(default is 'mongodb/mongodb-community-server:8.0.3-ubuntu2204')`
 ** Image versions on https://hub.docker.com/_/mongo?tab=tags[dockerhub]
 * `embedded.mongodb.host` `(default is localhost)`
 * `embedded.mongodb.port` `(default is 27017)`