[exporter/loki] Bring lokiexporter back to contrib distribuition (#38993)

<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->
#### Description
This is the follow-up PR to
#38438.
We at Grafana Labs still want the loki exporter in the contrib
distribution. It was removed from the distribution accidentally, it
should stay

<!-- Issue number (e.g. #1234) or full URL to issue, if applicable. -->
#### Link to tracking issue
Fixes
#38374

Author: mar4uk

.chloggen/add-lokiexporter-to-contrib-distro.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: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: lokiexporter
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Add lokiexporter component to the contrib distribution
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [38993]
+
+# (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: [user]

exporter/lokiexporter/README.md

@@ -6,13 +6,14 @@
 | Stability     | [deprecated]: logs   |
 | Deprecation of logs | [Date]: 2024-07-09   |
 |                      | [Migration Note]: Use OTLP exporter (https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/33916)   |
-| Distributions | [] |
+| Distributions | [contrib] |
 | Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aopen%20label%3Aexporter%2Floki%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aopen+is%3Aissue+label%3Aexporter%2Floki) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector-contrib?query=is%3Aissue%20is%3Aclosed%20label%3Aexporter%2Floki%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector-contrib/issues?q=is%3Aclosed+is%3Aissue+label%3Aexporter%2Floki) |
 | [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@gramidt](https://www.github.com/gramidt), [@mar4uk](https://www.github.com/mar4uk), [@dehaansa](https://www.github.com/dehaansa), [@ArthurSens](https://www.github.com/ArthurSens) |
 
 [deprecated]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#deprecated
 [Date]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#deprecation-information
 [Migration Note]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#deprecation-information
+[contrib]: https://github.com/open-telemetry/opentelemetry-collector-releases/tree/main/distributions/otelcol-contrib
 <!-- end autogenerated section -->
 Exports data via HTTP to [Loki](https://grafana.com/docs/loki/latest/).
 

exporter/lokiexporter/metadata.yaml

@@ -9,6 +9,7 @@ status:
       date: "2024-07-09"
       migration: Use OTLP exporter (https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/33916)
   distributions:
+  - contrib
   codeowners:
     active: [gramidt, mar4uk, dehaansa, ArthurSens]
 

reports/distributions/contrib.yaml

@@ -43,6 +43,7 @@ components:
         - loadbalancing
         - logicmonitor
         - logzio
+        - loki
         - mezmo
         - opencensus
         - opensearch