add container info as part of Kubernetes Logs filestream input

This is part of the fix for data duplication that happens when there
are multiple filestream inputs configured with the same ID.

The container ID and pod name are added to the filestream input
ID. The container ID ensure uniquiness and the pod name helps with
debugging.

Issue: elastic/beats#31512

packages/kubernetes/changelog.yml

@@ -1,4 +1,9 @@
 # newer versions go on top
+- version: "1.21.2"
+  changes:
+    - description: add container ID and pod name as part of Kubernetes Cotainer Logs filestream input
+      type: bugfix
+      link: https://github.com/elastic/integrations/pull/3672
 - version: "1.21.1"
   changes:
     - description: improved the wording of the link to Kubernetes documentation

packages/kubernetes/data_stream/container_logs/agent/stream/stream.yml.hbs

@@ -1,3 +1,4 @@
+id: kubernetes-container-logs-${kubernetes.pod.name}-${kubernetes.container.id}
 paths:
 {{#each paths}}
   - {{this}}

packages/kubernetes/manifest.yml

@@ -1,7 +1,7 @@
 format_version: 1.0.0
 name: kubernetes
 title: Kubernetes
-version: 1.21.1
+version: 1.21.2
 license: basic
 description: Collect logs and metrics from Kubernetes clusters with Elastic Agent.
 type: integration