[kafkatopicsobserver] change kafkatopicsobserver stability to alpha (#38424)

#### Description
Change kafkatopicsobserver stability to alpha

#### Link to tracking issue
New component
#37665

Author: wojtekzyla

.chloggen/feat_mark-kafkatopicsobserver-as-alpha.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: new_component
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: kafkatopicsobserver
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: "Change stability level of kafkatopicsobserver to alpha"
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [37665]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: []

cmd/otelcontribcol/builder-config.yaml

@@ -33,6 +33,7 @@ extensions:
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/ecstaskobserver v0.121.0
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/hostobserver v0.121.0
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/k8sobserver v0.121.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/kafkatopicsobserver v0.121.0
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/oidcauthextension v0.121.0
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/opampextension v0.121.0
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/pprofextension v0.121.0

extension/observer/kafkatopicsobserver/README.md

@@ -2,12 +2,13 @@
 <!-- status autogenerated section -->
 | Status        |           |
 | ------------- |-----------|
-| Stability     | [development]  |
-| Distributions | [] |
+| Stability     | [alpha]  |
+| Distributions | [contrib] |
 | Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aopen%20label%3Aextension%2Fkafkatopicsobserver%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aopen+is%3Aissue+label%3Aextension%2Fkafkatopicsobserver) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aclosed%20label%3Aextension%2Fkafkatopicsobserver%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aclosed+is%3Aissue+label%3Aextension%2Fkafkatopicsobserver) |
 | [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@MovieStoreGuy](https://www.github.com/MovieStoreGuy) |
 
-[development]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#development
+[alpha]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#alpha
+[contrib]: https://github.com/open-telemetry/opentelemetry-collector-releases/tree/main/distributions/otelcol-contrib
 <!-- end autogenerated section -->
 
 The Kafka topics observer extension is a [Receiver Creator](../../../receiver/receivercreator/README.md)-compatible "watch observer" that will detect and report

extension/observer/kafkatopicsobserver/internal/metadata/generated_status.go

@@ -3,9 +3,10 @@ type: kafkatopics_observer
 status:
   class: extension
   stability:
-    development: [extension]
+    alpha: [extension]
   codeowners:
     active: [MovieStoreGuy]
+  distributions: [contrib]
 
 tests:
   skip_lifecycle: true

extension/observer/kafkatopicsobserver/metadata.yaml

@@ -78,6 +78,7 @@ components:
         - http_forwarder
         - jaegerremotesampling
         - k8s_observer
+        - kafkatopics_observer
         - oauth2client
         - oidc
         - opamp