Merge branch 'igornovg/vector-switch' into 'master'

feat(BOUN-1003): reconfigure vector

* Replace Clickhouse ingest with vector2vector ingest using HTTP sink and native (vector protobuf schema) encoding. AWS loadbalancer is configured to proxy these ingests to a Clickhouse master node where the target Vector is running.
* Remove nginx log2metric workflow that wasn't used much
* Remove sampling which isn't used
* Rewrite Vector config from TOML to YAML (much more readable)

The target Vector is using the same username and password as Clickhouse before to make migration easier. The URL is hardcoded for now, but after migration we can also change it to the env var.

This was tested in dev and working fine. 

See merge request dfinity-lab/public/ic!17107

ic-os/boundary-guestos/rootfs/etc/systemd/system/vector.service

@@ -9,11 +9,10 @@ BindsTo=setup-vector.service
 User=vector
 Group=vector
 Restart=always
-Environment="NGINX_PROMETHUS_ADDR=[::]:9316"
 Environment="VECTOR_PROMETHUS_ADDR=[::]:9317"
 Environment="DANTED_PROMETHUS_ADDR=[::]:9323"
 EnvironmentFile=/run/ic-node/etc/default/vector
-ExecStart=/usr/bin/vector --config /etc/vector/vector.toml
+ExecStart=/usr/bin/vector --config /etc/vector/vector.yaml
 
 [Install]
 WantedBy=multi-user.target