feat(observability-pipeline): add agent identification attributes for…

… collector (#429)

## Which problem is this PR solving?

Beekeeper uses identification attribute in AgentDescription to
differentiate different agent types. This PR adds it for collector.

## Short description of the changes
- add `identifying_attributes` for collector config

## How to verify that this has the expected result
local testing

charts/observability-pipeline/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: observability-pipeline
 description: Chart to deploy both OpenTelemetry Collector and Honeycomb Refinery
 type: application
-version: 0.0.13-alpha
+version: 0.0.14-alpha
 appVersion: 0.0.1-alpha
 keywords:
   - refinery

charts/observability-pipeline/templates/_helpers.tpl

@@ -98,6 +98,10 @@ capabilities:
 
 agent:
   executable: /otelcol-contrib
+  description:
+    identifying_attributes:
+      service.name: collector
+
 
 storage:
   directory: /var/lib/otelcol/supervisor