misc: update CHANGELOG and docs for #5777

Update the CHANGELOG and docs to reflect the dropped requirement that
components must depend on consumed services.

Closes #5777.

CHANGELOG.md

@@ -101,6 +101,10 @@ Main (unreleased)
 
 - Improved resilience of graph evaluation in presence of slow components. (@thampiotr)
 
+- The `http` config block may now reference exports from any component.
+  Previously, only `remote.*` and `local.*` components could be referenced
+  without a circular dependency. (@rfratto)
+
 ### Bugfixes
 
 - Set exit code 1 on grafana-agentctl non-runnable command. (@fgouteroux)
@@ -156,7 +160,7 @@ v0.37.4 (2023-11-06)
 - Fix a bug where reloading the configuration of a `loki.write` component lead
   to a panic. (@tpaschalis)
 
-- Added Kubernetes service resolver to static node's loadbalancing exporter 
+- Added Kubernetes service resolver to static node's loadbalancing exporter
   and to Flow's `otelcol.exporter.loadbalancing`. (@ptodev)
 
 v0.37.3 (2023-10-26)

docs/sources/flow/reference/config-blocks/http.md

@@ -16,15 +16,6 @@ title: http block
 HTTP server functions. `http` is specified without a label and can only be
 provided once per configuration file.
 
-{{% admonition type="note" %}}
-While the `http` block can reference component exports, some components that
-rely on the HTTP server have a hidden dependency on the `http` block that may
-result in a circular dependency error.
-
-Only references to components named `remote.*` or `local.*` are guaranteed to
-work without any circular dependency errors.
-{{% /admonition %}}
-
 ## Example
 
 ```river
@@ -184,7 +175,7 @@ will serve the found certificate even if it is not compatible with the specified
 
 ### server block
 
-The `server` block is used to find the certificate to check the signer. If multiple certificates are found the 
+The `server` block is used to find the certificate to check the signer. If multiple certificates are found the
 `windows_certificate_filter` will choose the certificate with the expiration farthest in the future.
 
 Name | Type           | Description                                                                               | Default | Required