removing opendistro-job-scheduler-lock from list of protected indices (…

…#3383)

### Description
Coming from
opensearch-project/job-scheduler#492

As mitigation, removing `.opendistro-job-scheduler-lock` from list of
protected indices for 3.x/2.x. The lock index will still remain as a
system index.

### Check List
- [ ] New functionality includes testing
- [ ] New functionality has been documented
- [X] Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and
signing off your commits, please check
[here](https://github.com/opensearch-project/OpenSearch/blob/main/CONTRIBUTING.md#developer-certificate-of-origin).

Signed-off-by: Joshua Palis <[email protected]>
(cherry picked from commit f09a6aa)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

tools/install_demo_configuration.bat

@@ -317,7 +317,7 @@ echo plugins.security.enable_snapshot_restore_privilege: true >> "%OPENSEARCH_CO
 echo plugins.security.check_snapshot_restore_write_privileges: true >> "%OPENSEARCH_CONF_FILE%"
 echo plugins.security.restapi.roles_enabled: ["all_access", "security_rest_api_access"] >> "%OPENSEARCH_CONF_FILE%"
 echo plugins.security.system_indices.enabled: true >> "%OPENSEARCH_CONF_FILE%"
-echo plugins.security.system_indices.indices: [".plugins-ml-config", ".plugins-ml-connector", ".plugins-ml-model-group", ".plugins-ml-model", ".plugins-ml-task", ".plugins-ml-conversation-meta", ".plugins-ml-conversation-interactions", ".opendistro-alerting-config", ".opendistro-alerting-alert*", ".opendistro-anomaly-results*", ".opendistro-anomaly-detector*", ".opendistro-anomaly-checkpoints", ".opendistro-anomaly-detection-state", ".opendistro-reports-*", ".opensearch-notifications-*", ".opensearch-notebooks", ".opensearch-observability", ".ql-datasources", ".opendistro-asynchronous-search-response*", ".replication-metadata-store", ".opensearch-knn-models", ".geospatial-ip2geo-data*", ".opendistro-job-scheduler-lock"] >> "%OPENSEARCH_CONF_FILE%"
+echo plugins.security.system_indices.indices: [".plugins-ml-config", ".plugins-ml-connector", ".plugins-ml-model-group", ".plugins-ml-model", ".plugins-ml-task", ".plugins-ml-conversation-meta", ".plugins-ml-conversation-interactions", ".opendistro-alerting-config", ".opendistro-alerting-alert*", ".opendistro-anomaly-results*", ".opendistro-anomaly-detector*", ".opendistro-anomaly-checkpoints", ".opendistro-anomaly-detection-state", ".opendistro-reports-*", ".opensearch-notifications-*", ".opensearch-notebooks", ".opensearch-observability", ".ql-datasources", ".opendistro-asynchronous-search-response*", ".replication-metadata-store", ".opensearch-knn-models", ".geospatial-ip2geo-data*"] >> "%OPENSEARCH_CONF_FILE%"
 
 :: network.host
 >nul findstr /b /c:"network.host" "%OPENSEARCH_CONF_FILE%" && (

tools/install_demo_configuration.sh

@@ -385,7 +385,7 @@ echo "plugins.security.enable_snapshot_restore_privilege: true" | $SUDO_CMD tee
 echo "plugins.security.check_snapshot_restore_write_privileges: true" | $SUDO_CMD tee -a "$OPENSEARCH_CONF_FILE" > /dev/null
 echo 'plugins.security.restapi.roles_enabled: ["all_access", "security_rest_api_access"]' | $SUDO_CMD tee -a "$OPENSEARCH_CONF_FILE" > /dev/null
 echo 'plugins.security.system_indices.enabled: true' | $SUDO_CMD tee -a "$OPENSEARCH_CONF_FILE" > /dev/null
-echo 'plugins.security.system_indices.indices: [".plugins-ml-config", ".plugins-ml-connector", ".plugins-ml-model-group", ".plugins-ml-model", ".plugins-ml-task", ".plugins-ml-conversation-meta", ".plugins-ml-conversation-interactions", ".opendistro-alerting-config", ".opendistro-alerting-alert*", ".opendistro-anomaly-results*", ".opendistro-anomaly-detector*", ".opendistro-anomaly-checkpoints", ".opendistro-anomaly-detection-state", ".opendistro-reports-*", ".opensearch-notifications-*", ".opensearch-notebooks", ".opensearch-observability", ".ql-datasources", ".opendistro-asynchronous-search-response*", ".replication-metadata-store", ".opensearch-knn-models", ".geospatial-ip2geo-data*", ".opendistro-job-scheduler-lock"]' | $SUDO_CMD tee -a "$OPENSEARCH_CONF_FILE" > /dev/null
+echo 'plugins.security.system_indices.indices: [".plugins-ml-config", ".plugins-ml-connector", ".plugins-ml-model-group", ".plugins-ml-model", ".plugins-ml-task", ".plugins-ml-conversation-meta", ".plugins-ml-conversation-interactions", ".opendistro-alerting-config", ".opendistro-alerting-alert*", ".opendistro-anomaly-results*", ".opendistro-anomaly-detector*", ".opendistro-anomaly-checkpoints", ".opendistro-anomaly-detection-state", ".opendistro-reports-*", ".opensearch-notifications-*", ".opensearch-notebooks", ".opensearch-observability", ".ql-datasources", ".opendistro-asynchronous-search-response*", ".replication-metadata-store", ".opensearch-knn-models", ".geospatial-ip2geo-data*"]' | $SUDO_CMD tee -a "$OPENSEARCH_CONF_FILE" > /dev/null
 
 #network.host
 if $SUDO_CMD grep --quiet -i "^network.host" "$OPENSEARCH_CONF_FILE"; then