[ONPREM-2091] - Change metadata.name environment variable to match the usage (#87)

* change metadata.name environment variable to match the usage

* update changelog

Author: imlogang

changelog.md

@@ -1,7 +1,7 @@
 # Container Agent Helm Chart Changelog
 
 # Edge
-[#86](https://github.com/CircleCI-Public/container-runner-helm-chart/pull/86) Added `KUBE_META_DATA_NAME` as an environment variable so container agent is aware of its pod name.
+[#86](https://github.com/CircleCI-Public/container-runner-helm-chart/pull/87) Added `KUBE_CONTAINER_AGENT_INSTANCE` as an environment variable so container agent is aware of its pod name.
 
 [#71](https://github.com/CircleCI-Public/container-runner-helm-chart/pull/71) Added an option to configure the image name for the orchestrator container, enabling hosting in a private registry or an air-gapped environment on CircleCI server. See the [runner-init repository](https://github.com/circleci/runner-init) for more information.
 

templates/deployment.yaml

@@ -99,7 +99,7 @@ spec:
               value: {{- if ne .loggingLevel nil }} {{ .loggingLevel | quote }} {{- else }} {{ .log.level | quote }} {{- end }}
             - name: O11Y_FORMAT
               value: {{ .log.format | quote }}
-            - name: KUBE_META_DATA_NAME
+            - name: KUBE_CONTAINER_AGENT_INSTANCE
               valueFrom:
                 fieldRef:
                   apiVersion: v1