chore(host_metrics): update changelog

Signed-off-by: Sanskar Jaiswal <[email protected]>

changelog.d/21972-add-tcp-collector-host-metrics.feature.md

@@ -1,13 +1,12 @@
-The `host_metrics` source has a new collector, `tcp`. The `tcp`
-collector exposes three metrics related to the TCP stack of the
-system:
-* `tcp_connections_total`: The total number of TCP connections. It
-  includes the `state` of the connection as a tag.
-* `tcp_tx_queued_bytes_total`: The sum of the number of bytes in the
-   send queue across all connections.
-* `tcp_rx_queued_bytes_total`: The sum of the number of bytes in the
-  receive queue across all connections.
+The `network` collector in the `host_metrics` source has been
+updated to expose three metrics about the TCP stack of the system:
+* `network_tcp_connections_total`: The total number of TCP
+  connections. It includes the `state` of the connection as a tag.
+* `network_tcp_tx_queued_bytes_total`: The sum of the number of bytes
+   in the send queue across all connections.
+* `network_tcp_rx_queued_bytes_total`: The sum of the number of bytes
+  in the receive queue across all connections.
 
-This collector is enabled only on Linux systems.
+These metrics are only available for Linux systems.
 
 authors: aryan9600