feat: add kafkatopicsobserver extension (#895)

Author: wojtekzyla

.chloggen/feat_add-kafkatopicsobserver.yaml

@@ -0,0 +1,26 @@
+# 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. otlpreceiver)
+component: kafkatopicsobserver
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: "Add kafkatopicsobserver extension"
+
+# One or more tracking issues or pull requests related to the change
+issues: [894]
+
+# (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:
+
+# 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: []
+

distributions/otelcol-contrib/manifest.yaml

@@ -28,6 +28,7 @@ extensions:
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/ecstaskobserver v0.122.0
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/hostobserver v0.122.0
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/k8sobserver v0.122.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/observer/kafkatopicsobserver v0.122.0
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/oidcauthextension v0.122.0
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/opampextension v0.122.0
   - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/pprofextension v0.122.0