Fix 'mixtool lint' in commonlib/logslib (#1366)

Author: v-zhuravlev

common-lib/common/variables/variables.libsonnet

@@ -11,7 +11,7 @@ local utils = import '../utils.libsonnet';
     enableLokiLogs=false,
     customAllValue='.+',
     prometheusDatasourceName=if enableLokiLogs then 'prometheus_datasource' else 'datasource',
-    prometheusDatasourceLabel=if enableLokiLogs then 'Prometheus datasource' else 'Data source',
+    prometheusDatasourceLabel=if enableLokiLogs then 'Prometheus data source' else 'Data source',
   ): {
        local varMetricTemplate(varMetric, chainSelector) =
          // check if chainSelector is not empty string (case when filtering selector is empty):

logs-lib/logs/targets.libsonnet

@@ -30,7 +30,7 @@ function(
         sum by (%s) (count_over_time({%s}
         |~ "$regex_search"
         %s
-        [$__interval]))
+        [$__auto]))
       ||| % [
         logsVolumeGroupBy,
         variables.queriesSelector,